Welcome!

Eclipse Authors: Pat Romanski, Elizabeth White, Liz McMillan, David H Deans, JP Morgenthal

Related Topics: Java IoT

Java IoT: Article

Java Streams Basics

Lesson 5

Most of the programs work with external data stored either in local files or coming from other computers on the network. Java has a concept of working with so-called streams of data. After a physical data storage is mapped to a logical stream, a Java program reads data from this stream serially - byte after byte, character after character, etc. Some of the types of streams are byte streams (InputStream, OutputStream) and character streams (Reader and Writer). The same physical file could be read using different types of streams, for example, FileInputStream, or FileReader.

Classes that work with streams are located in the package java.io. Java 1.4 has introduced the new package java.nio with improved performance, which is not covered in this lesson.

There are different types of data, and hence different types of streams.

Here's the sequence of steps needed to work with a stream:

  1. Open a stream that points at a specific data source: a file, a socket, URL, etc.
  2. Read or write data from/to this stream.
  3. Close the stream.

Let's have a closer look at some of the Java streams.

Byte Streams

If a program needs to read/write bytes (8-bit data), it could use one of the subclasses of the InputStream or OutputStream respectively. The example below shows how to use the class FileInputStream to read a file named abc.dat. This code snippet prints each byte's value separated with white spaces. Byte values are represented by integers from 0 to 255, and if the read() method returns -1, this indicates the end of the stream.

import java.io.FileInputStream;
import java.io.IOException;
public class ReadingBytes {
public static void main(String[] args) {  FileInputStream myFile = null;  try {
  myFile = new FileInputStream("c:\\abc.dat");  // open the  stream
  boolean eof = false;
   while (!eof) {
    int byteValue = myFile.read();  // read  the stream
    System.out.println(byteValue);
    if (byteValue  == -1){
    eof = true;
    }
    //myFile.close();  // do not do it here!!!
   }
  }catch (IOException e) {
      System.out.println("Could not read file: " + e.toString());
  } finally{
   try{
     if (myFile!=null){
       myFile.close(); // close the stream
     }
   } catch (Exception e1){
    e1.printStackTrace();
   }
  }
 }
}

Please note that the stream is closed in the clause finally. Do not call the method close() inside of the try/catch block right after the file reading is done. In case of exception during the file read, the program would jump over the close() statement and the stream would never be closed!

The next code fragment writes into the file xyz.dat using the class FileOutputStream:

int somedata[]={56,230,123,43,11,37};
FileOutputStream myFile = null;
try {
  myFile = new  FileOutputStream("c:\xyz.dat");
  for (int i = 0; i <somedata.length;I++){
      myFile.write(data[I]);
  }
} catch (IOException e)
      System.out.println("Could not write to a file: " + e.toString()); }
finally
    // Close the file the same way as in example above }

Buffered Streams

So far we were reading and writing one byte at a time. Disk access is much slower than the processing performed in memory. That's why it's not a good idea to access disk 1000 times for reading a file of 1000 bytes. To minimize the number of time the disk is accessed, Java provides buffers, which are sort of "reservoirs of data". For example, the class BufferedInputStream works as a middleman between the FileInputStream and the file itself. It reads a big chunk of bytes from a file in one shot into memory, and, then the FileInputStream will read single bytes from there. The BufferedOutputStream works in a similar manner with the class FileOutputStream. Buffered streams just make reading more efficient.

You can use stream chaining (or stream piping) to connect streams - think of connecting two pipes in plumbing. Let's modify the example that reads the file abc.dat to introduce the buffering:

FileInputStream myFile = null;
BufferedInputStream buff =null
try {
  myFile = new  FileInputStream("abc.dat");
  BufferedInputStream buff = new BufferedInputStream(myFile);
  boolean eof = false;
  while (!eof) {
    int byteValue = buff.read();
    System.out.print(byteValue + " ");
    if (byteValue  == -1)
      eof = true;
  }
} catch (IOException e) {
  e.printStackTrace();
} finally{
  buff.close();
  myFile.close();
}

It's a good practice to call the method flush() when the writing into a BufferedOutputStream is done - this forces any buffered data to be written out to the underlying output stream.

While the default buffer size varies depending on the OS, it could be controlled. For example, to set the buffer size to 5000 bytes do this:

BufferedInputStream buff = new BufferedInputStream(myFile, 5000);

Character Streams

Java uses two-byte characters to represent text data, and the classes FileReader and FileWriter work with text files. These classes allow you to read files either one character at a time with read(), or one line at a time with readLine().

The classes FileReader and FileWriter also support have buffering with the help of BufferedReader and BufferedWriter. The following example reads text one line at a time:

FileReader myFile = null;
BufferedReader buff = null;
try {
  myFile = new FileReader("abc.txt");
  buff = new BufferedReader(myFile);
  boolean eof = false;
  while (!eof) {
    String line = buff.readLine();
    if (line == null)
      eof = true;
    else
      System.out.println(line);
    }
    ....
}

For the text output, there are several overloaded methods write() that allow you to write one character, one String or an array of characters at a time.

To append data to an existing file while writing, use the 2-arguments constructor (the second argument toggles the append mode):

FileWriter fOut = new FileWriter("xyz.txt", true);

Below is yet another version of the tax calculation program (see the lesson Intro to Object-Oriented Programming with Java). This is a Swing version of the program and it populates the populate the dropdown box chState with the data from the text file states.txt.

import java.awt.event.*;
import java.awt.*;
import java.io.FileReader;
import java.io.BufferedReader;
import java.io.IOException;

public class TaxFrameFile extends java.awt.Frame implements ActionListener {
  Label lblGrIncome;
  TextField txtGrossIncome = new TextField(15);
  Label lblDependents=new Label("Number of Dependents:");
  TextField txtDependents = new TextField(2);
  Label lblState = new Label("State: ");
  Choice chState = new Choice();

  Label lblTax = new Label("State Tax: ");
  TextField txtStateTax = new TextField(10);
  Button bGo = new Button("Go");
  Button bReset = new Button("Reset");

  TaxFrameFile() {
    lblGrIncome = new Label("Gross Income: ");
    GridLayout gr = new GridLayout(5,2,1,1);
    setLayout(gr);

    add(lblGrIncome);
    add(txtGrossIncome);
    add(lblDependents);
    add(txtDependents);
    add(lblState);
    add(chState);
    add(lblTax);
    add(txtStateTax);
    add(bGo);
    add(bReset);

    // Populate states from a file
    populateStates();
    txtStateTax.setEditable(false);

    bGo.addActionListener(this);
    bReset.addActionListener(this);

    // Define, instantiate and register a WindowAdapter
    // to process windowClosing Event of this frame

       this.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
                           System.out.println("Good bye!");
            System.exit(0);
        }});
    }

    public void actionPerformed(ActionEvent evt) {
       Object source = evt.getSource();
        if (source == bGo ){
           // The Button Go processing
             try{
               int grossInc =
                Integer.parseInt(txtGrossIncome.getText());
               int dependents   =
                 Integer.parseInt(txtDependents.getText());
               String state = chState.getSelectedItem();

               Tax tax=new Tax(dependents,state,grossInc);
               String sTax =
                       Double.toString(tax.calcStateTax());
               txtStateTax.setText(sTax);
             }catch(NumberFormatException e){
                 txtStateTax.setText("Non-Numeric Data");
             }catch (Exception e){
                txtStateTax.setText(e.getMessage());
             }
         }
         else if (source == bReset ){
            // The Button Reset processing
        txtGrossIncome.setText("");
        txtDependents.setText("");
                          chState.select("  ");
        txtStateTax.setText("");
             }
    }
   // This method will read the file states.txt and  
   // populate the dropdown chStates
    private void populateStates(){
      FileReader myFile = null;
      BufferedReader buff = null;
        try {
            myFile = new FileReader("states.txt");
            buff = new BufferedReader(myFile);

            boolean eof = false;
            while (!eof) {
                String line = buff.readLine();
                if (line == null)
                   eof = true;
                else
                   chState.add(line);
         }
        }catch (IOException e){
           txtStateTax.setText("Can't read states.txt");
       }
       finally{
         // Closing the streams
         try{
            buff.close();
            myFile.close();
         }catch(IOException e){
            e.printStackTrace();
         }
       }
    }

    public static void main(String args[]){
       TaxFrameFile taxFrame = new TaxFrameFile();
       taxFrame.setSize(400,150);
       taxFrame.setVisible(true);
    }
}

Data Streams

If you are expecting to work with a stream of a known data structure, i.e. two integers, three floats and a double, use either the DataInputStream or the DataOutputStream. A method call readInt() will read the whole integer number (4 bytes ) at once, and the readLong() will get you a long number (8 bytes).

The DataInput stream is just a filter. We are building a "pipe" from the following fragments:

FileInputStream --> BufferedInputStream --> DataInputStream

FileInputStream myFile = new FileInputStream("myData.dat");
BufferedInputStream buff = new BufferedInputStream(myFile);
DataInputStream data = new  DataInputStream(buff);

try {
   int num1 = data.readInt();
   int num2 = data.readInt();
   float num2 = data.readFloat();
   float num3 = data.readFloat();
   float num4 = data.readFloat();
   double num5 = data.readDouble();
} catch (EOFException eof) {...}

Class StreamTokenizer

Sometimes you need to parse a stream without knowing in advance what data types you are getting. In this case you want to get each "piece of data" (token) based on the fact that a delimiter such as a space, comma, etc separates the data elements.

The class java.io.StreamTokenizer reads tokens one at a time. It can recognize identifiers, numbers, quoted strings, etc. Typically an application creates an instance of this class, sets up the rules for parsing, and then repeatedly calls the method nextToken() until it returns the value TT_EOF (end of file).

Let's write a program that will read and parse the file customers.txt distinguishing strings from numbers.

Suppose we have a file customers.txt with the following content:

John Smith  50.24
Mary Lou  234.29
Alexander Popandopula  456.11

Here is the program that parses it:

import java.io.StreamTokenizer;
import java.io.FileReader;

public class CustomerTokenizer{
  public static void main(String args[]){

  StreamTokenizer stream =null;
  try{
    stream = new StreamTokenizer( new
                            FileReader("customers.txt"));
    while (true) {

         int token = stream.nextToken();
         if (token == StreamTokenizer.TT_EOF)
             break;
         if (token == StreamTokenizer.TT_WORD) {
             System.out.println("Got the string: " +
                                         stream.sval);
             }
         if (token == StreamTokenizer.TT_NUMBER) {
             System.out.println("Got the number: " +
                                         stream.nval);
             }
        }
      }catch (Exception e){
         System.out.println("Can't read Customers.txt: " +
                                             e.toString());
      }
      finally{
          try{
             stream.close();
          }catch(Exception e){e.printStackTrace();}          
      }
   }
}

After compiling and running the program CustomerTokenizer, the system console will look like this:

javac CustomerTokenizer.java

java CustomerTokenizer

Got the string: John
Got the string: Smith
Got the number: 50.24
Got the string: Mary
Got the string: Lou
Got the number: 234.29
Got the string: Alexander
Got the string: Popandopula
Got the number: 456.11

When a StreamTokenizer finds a word, it places the value into the sval member variable, and the numbers are placed into the variable nval.

You can specify characters that should be treated as delimiters by calling the method whitespaceChars(). The characters that represent quotes in the stream are set by calling the method quoteChar().

To make sure that certain characters are not misinterpreted, call a method ordinaryChar(), for example ordinaryChar('/');

Class StringTokenizer

The class java.util.StringTokenizer is a simpler version of a class StreamTokenizer, but it works only with strings. The set of delimiters could be specified at the creation time, i.e. comma and angle brackets:

StringTokenizer st = new StringTokenizer(
              "Yakov, 12 Main St., New York", ",<>");
while (st.hasMoreTokens()) {
    System.out.println(st.nextToken());
}

The above code fragment would print the following:

HTML
Yakov
12 Main St.
New York

The previous sample would not return the value of a delimiter - it just returned the tokens. But sometimes, in case of multiple delimiters, you may want to know what's the current delimiter. The 3-argument constructor will provide this information. The following example defines 4 delimiters: greater and less then signs, comma and a white space:

StringTokenizer st=new StringTokenizer( "...IBM...price<...>86.3", "<>, ", true);

If the third argument is true, delimiter characters are also considered to be tokens and will be returned to the calling method, so a program may apply different logic based on the delimiter. If you decide to parse HTML file, you'll need to know what's the current delimiter to apply the proper logic.

Class File

This class has a number of useful file maintenance methods that allow rename, delete, perform existence check, etc. First you have to create an instance of this class:

File myFile = new File("abc.txt");

The line above does not actually create a file - it just creates an instance of the class File that is ready to perform some manipulations with the file abc.txt.The method createNewFile() should be used for the actual creation of the file.

Below are some useful methods of the class File:

   1. createNewFile()creates a new, empty file named according to the file name used during the File instantiation. It creates a new file only if a file with this name does not exist
   2. delete() deletes file or directory
   3. renameTo() renames a file
   4. length() returns the length of the file in bytes
   5. exists() tests whether the file with specified name exists
   6. list() returns an array of strings naming the files and directories in the specified directory
   7. lastModified() returns the time that the file was last modified
   8. mkDir() creates a directory

The code below creates a renames a file customers.txt to customers.txt.bak. If a file with such name already exists, it will be overwritten.

File file = new File("customers.txt");
File backup = new File("customers.txt.bak");
if (backup.exists()){
 backup.delete();
}
file.renameTo(backup);

More Stories By Yakov Fain

Yakov Fain is a Java Champion and a co-founder of the IT consultancy Farata Systems and the product company SuranceBay. He wrote a thousand blogs (http://yakovfain.com) and several books about software development. Yakov authored and co-authored such books as "Angular 2 Development with TypeScript", "Java 24-Hour Trainer", and "Enterprise Web Development". His Twitter tag is @yfain

Comments (13) View Comments

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Most Recent Comments
Frederik De Milde 02/06/05 04:41:46 PM EST

A little bug in your code snippet on Buffering: buff shouldn't be declared twice...

FileInputStream myFile = null;
BufferedInputStream buff =null
try {
myFile = new FileInputStream("abc.dat");
BufferedInputStream buff = new BufferedInputStream(myFile);
boolean eof = false;
while (!eof) {
int byteValue = buff.read();
System.out.print(byteValue + " ");
if (byteValue == -1)
eof = true;
}
} catch (IOException e) {
e.printStackTrace();
} finally{
buff.close();
myFile.close();
}

Muiris O Cleirigh 03/29/04 04:26:47 AM EST

There seems to be a problem rendering this article - this part doesn''t make a lot of sense to me ......

The next code fragment writes into the file xyz.dat using the class FileOutputStream:

int somedata[]={56,230,123,43,11,37};
FileOutputStream myFile = null;
try {
myFile = new FileOutputStream("xyz.dat");
for (int i = 0; i
You can use stream chaining (or stream piping) to connect streams - think of connecting two pipes in plumbing.
Let''s modify the example that reads the file abc.dat to introduce the buffering:

FileInputStream myFile = null;
BufferedInputStream buff =null
try {
myFile = new FileInputStream("abc.dat");
BufferedInputStream buff = new BufferedInputStream(myFile);
boolean eof = false;
while (!eof) {
int byteValue = buff.read();
System.out.print(byteValue + " ");
if (byteValue == -1)
eof = true;
}
} catch (IOException e) {
e.printStackTrace();
} finally{
buff.close();
myFile.close();
}

Greg Nudelman 01/07/04 12:05:29 PM EST

Excellent article. This has got to be one of the best Stream tutorials out there. I''m also very impressed with your coverage of the StreamTokenizer -- this is an "esoteric" class that few people know and understand how to use effectively. I''m also very impressed with a nice concise run-down of the File class features, such as directory management. Again, excellent article. Keep up the good work!

Greg

michael turner 01/07/04 11:00:34 AM EST

This was a good summarization of Java Stream Basics. I have retained sections of the article for Reference. Thank you for presenting the information

Yakov Fain 01/07/04 10:48:56 AM EST

Sorry, the FileReader should have been closed:

import java.io.StreamTokenizer;
import java.io.FileReader;

public class CustomerTokenizer{
public static void main(String args[]){

StreamTokenizer stream =null;
FileReader fr=null;
try{
fr = new FileReader("customers.txt");
stream = new StreamTokenizer(fr );
while (true) {

int token = stream.nextToken();
if (token == StreamTokenizer.TT_EOF)
break;
if (token == StreamTokenizer.TT_WORD) {
System.out.println("Got the string: " +
stream.sval);
}
if (token == StreamTokenizer.TT_NUMBER) {
System.out.println("Got the number: " +
stream.nval);
}
}
}catch (Exception e){
System.out.println("Can''t read Customers.txt: " +
e.toString());
}
finally{
try{
fr.close();
}catch(Exception e){e.printStackTrace();}
}
}
}

thomas harris 01/07/04 09:50:54 AM EST

I tried to compile the CustomerTokenizer class and came up with the following error:

File: C:\java\test\CustomerTokenizer.java [line: 33]
Error: cannot resolve symbol
symbol : method close ()
location: class java.io.StreamTokenizer

I checked the api, and the close() method is available via java.io.FileReader so I am not clear on why I got the above error message. Is the compiler looking for the method in the wrong class?

Yakov Fain 01/07/04 09:19:31 AM EST

One of ther readers asked me the questions listed below, and I decided to publish the answers over here as well.

What is the reason for a buffered reader and buffered
writer--what is the need for buffering?

Buffering allows you to read a bunch of bytes from disk into the buffer in one shot, and then the program gets the data from the buffer from the memory byte by byte, int by int, etc. This minimizes the number of times your program has to access the disk.

StreamTokenizer does not have a close method. How do
you close a Stream Tokenizer?

The StreamTokenizer is not a stream itself - it does not need to be closed.

Andrey Postoyanets 01/06/04 05:22:20 PM EST

So far the style of this lessons series has been outstanding. Nothing can be more valuable than informative, easy-to-follow examples with a clear explanation.
I also agree that the usage of Java streams and XML manipulation would be a great topic for one of the future articles.

Matt Campbell 01/06/04 03:54:37 PM EST

LOL!

Steve Krenz 01/06/04 03:22:36 PM EST

What''s VB ;-)

Matt Campbell 01/06/04 02:31:39 PM EST

You know, it still isn''t nearly as easy as getting a stream of chars by line or a whole file for parsing as it is in VB. :)

Steven Krenz 01/06/04 11:27:03 AM EST

Good article as far as it goes but what would be much more helpful would be a discussion of how readers differ from and are built on streams. What I always find difficult to remember is the best way to read a whole line of data from a stream and not just characters. The connection between java.io streams and org.xml.sax.InputStream is what I suspect most developers are concerned about right now.

Warawich Sundarabhaka 01/05/04 10:50:38 PM EST

very good lesson and example.

@ThingsExpo Stories
Explosive growth in connected devices. Enormous amounts of data for collection and analysis. Critical use of data for split-second decision making and actionable information. All three are factors in making the Internet of Things a reality. Yet, any one factor would have an IT organization pondering its infrastructure strategy. How should your organization enhance its IT framework to enable an Internet of Things implementation? In his session at @ThingsExpo, James Kirkland, Red Hat's Chief Archi...
In his general session at 19th Cloud Expo, Manish Dixit, VP of Product and Engineering at Dice, discussed how Dice leverages data insights and tools to help both tech professionals and recruiters better understand how skills relate to each other and which skills are in high demand using interactive visualizations and salary indicator tools to maximize earning potential. Manish Dixit is VP of Product and Engineering at Dice. As the leader of the Product, Engineering and Data Sciences team at D...
Personalization has long been the holy grail of marketing. Simply stated, communicate the most relevant offer to the right person and you will increase sales. To achieve this, you must understand the individual. Consequently, digital marketers developed many ways to gather and leverage customer information to deliver targeted experiences. In his session at @ThingsExpo, Lou Casal, Founder and Principal Consultant at Practicala, discussed how the Internet of Things (IoT) has accelerated our abilit...
Organizations planning enterprise data center consolidation and modernization projects are faced with a challenging, costly reality. Requirements to deploy modern, cloud-native applications simultaneously with traditional client/server applications are almost impossible to achieve with hardware-centric enterprise infrastructure. Compute and network infrastructure are fast moving down a software-defined path, but storage has been a laggard. Until now.
Digital Transformation is much more than a buzzword. The radical shift to digital mechanisms for almost every process is evident across all industries and verticals. This is often especially true in financial services, where the legacy environment is many times unable to keep up with the rapidly shifting demands of the consumer. The constant pressure to provide complete, omnichannel delivery of customer-facing solutions to meet both regulatory and customer demands is putting enormous pressure on...
The best way to leverage your CloudEXPO | DXWorldEXPO presence as a sponsor and exhibitor is to plan your news announcements around our events. The press covering CloudEXPO | DXWorldEXPO will have access to these releases and will amplify your news announcements. More than two dozen Cloud companies either set deals at our shows or have announced their mergers and acquisitions at CloudEXPO. Product announcements during our show provide your company with the most reach through our targeted audienc...
JETRO showcased Japan Digital Transformation Pavilion at SYS-CON's 21st International Cloud Expo® at the Santa Clara Convention Center in Santa Clara, CA. The Japan External Trade Organization (JETRO) is a non-profit organization that provides business support services to companies expanding to Japan. With the support of JETRO's dedicated staff, clients can incorporate their business; receive visa, immigration, and HR support; find dedicated office space; identify local government subsidies; get...
DXWorldEXPO LLC announced today that ICC-USA, a computer systems integrator and server manufacturing company focused on developing products and product appliances, will exhibit at the 22nd International CloudEXPO | DXWorldEXPO. DXWordEXPO New York 2018, colocated with CloudEXPO New York 2018 will be held November 11-13, 2018, in New York City. ICC is a computer systems integrator and server manufacturing company focused on developing products and product appliances to meet a wide range of ...
@DevOpsSummit at Cloud Expo, taking place November 12-13 in New York City, NY, is co-located with 22nd international CloudEXPO | first international DXWorldEXPO and will feature technical sessions from a rock star conference faculty and the leading industry players in the world.
DXWorldEXPO LLC announced today that the upcoming DXWorldEXPO | CloudEXPO New York event will feature 10 companies from Poland to participate at the "Poland Digital Transformation Pavilion" on November 12-13, 2018.
22nd International Cloud Expo, taking place June 5-7, 2018, at the Javits Center in New York City, NY, and co-located with the 1st DXWorld Expo will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud ...
In his keynote at 19th Cloud Expo, Sheng Liang, co-founder and CEO of Rancher Labs, discussed the technological advances and new business opportunities created by the rapid adoption of containers. With the success of Amazon Web Services (AWS) and various open source technologies used to build private clouds, cloud computing has become an essential component of IT strategy. However, users continue to face challenges in implementing clouds, as older technologies evolve and newer ones like Docker c...
Business professionals no longer wonder if they'll migrate to the cloud; it's now a matter of when. The cloud environment has proved to be a major force in transitioning to an agile business model that enables quick decisions and fast implementation that solidify customer relationships. And when the cloud is combined with the power of cognitive computing, it drives innovation and transformation that achieves astounding competitive advantage.
Cloud-enabled transformation has evolved from cost saving measure to business innovation strategy -- one that combines the cloud with cognitive capabilities to drive market disruption. Learn how you can achieve the insight and agility you need to gain a competitive advantage. Industry-acclaimed CTO and cloud expert, Shankar Kalyana presents. Only the most exceptional IBMers are appointed with the rare distinction of IBM Fellow, the highest technical honor in the company. Shankar has also receive...
Michael Maximilien, better known as max or Dr. Max, is a computer scientist with IBM. At IBM Research Triangle Park, he was a principal engineer for the worldwide industry point-of-sale standard: JavaPOS. At IBM Research, some highlights include pioneering research on semantic Web services, mashups, and cloud computing, and platform-as-a-service. He joined the IBM Cloud Labs in 2014 and works closely with Pivotal Inc., to help make the Cloud Found the best PaaS.
In his Opening Keynote at 21st Cloud Expo, John Considine, General Manager of IBM Cloud Infrastructure, led attendees through the exciting evolution of the cloud. He looked at this major disruption from the perspective of technology, business models, and what this means for enterprises of all sizes. John Considine is General Manager of Cloud Infrastructure Services at IBM. In that role he is responsible for leading IBM’s public cloud infrastructure including strategy, development, and offering m...
DXWorldEXPO LLC announced today that All in Mobile, a mobile app development company from Poland, will exhibit at the 22nd International CloudEXPO | DXWorldEXPO. All In Mobile is a mobile app development company from Poland. Since 2014, they maintain passion for developing mobile applications for enterprises and startups worldwide.
We are seeing a major migration of enterprises applications to the cloud. As cloud and business use of real time applications accelerate, legacy networks are no longer able to architecturally support cloud adoption and deliver the performance and security required by highly distributed enterprises. These outdated solutions have become more costly and complicated to implement, install, manage, and maintain.SD-WAN offers unlimited capabilities for accessing the benefits of the cloud and Internet. ...
Headquartered in Plainsboro, NJ, Synametrics Technologies has provided IT professionals and computer systems developers since 1997. Based on the success of their initial product offerings (WinSQL and DeltaCopy), the company continues to create and hone innovative products that help its customers get more from their computer applications, databases and infrastructure. To date, over one million users around the world have chosen Synametrics solutions to help power their accelerated business or per...
Dion Hinchcliffe is an internationally recognized digital expert, bestselling book author, frequent keynote speaker, analyst, futurist, and transformation expert based in Washington, DC. He is currently Chief Strategy Officer at the industry-leading digital strategy and online community solutions firm, 7Summits.