Write int to a file using DataOutputStream


/*
  Write int to a file using DataOutputStream
  This Java example shows how to write a Java integer primitive value to a file using
  writeInt method of Java DataOutputStream class.
*/

import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class WriteIntToFile {

 
public static void main(String[] args) {
   
   
String strFilePath = "C://FileIO//WriteInt.txt";
   
   
try
   
{
     
//create FileOutputStream object
     
FileOutputStream fos = new FileOutputStream(strFilePath);
     
     
/*
       * To create DataOutputStream object from FileOutputStream use,
       * DataOutputStream(OutputStream os) constructor.
       *
       */
      
      
DataOutputStream dos = new DataOutputStream(fos);
      
      
int i = 100;
      
      
/*
        * To write an int value to a file, use
        * void writeInt(int i) method of Java DataOutputStream class.
        *
        * This method writes specified int to output stream as 4 bytes value.
        */
       
       
dos.writeInt(i);
       
       
/*
         * To close DataOutputStream use,
         * void close() method.
         *
         */
        
        
dos.close();
        
   
}
   
catch (IOException e)
    {
     
System.out.println("IOException : " + e);
   
}

  }
}