Java.io.ObjectInputStream.readInt() Method

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Description

The java.io.ObjectInputStream.readInt() method reads a 32 bit int.

Declaration

Following is the declaration for java.io.ObjectInputStream.readInt() method.

public int readInt()

Parameters

NA

Return Value

This method does not return a value.

Exception

• EOFException − If end of file is reached.

• IOException − If an I/O error has occurred.

Example

The following example shows the usage of java.io.ObjectInputStream.readInt() method.

package com.tutorialspoint;

import java.io.*;

public class ObjectInputStreamDemo {
   public static void main(String[] args) {
      int i = 319874;
      
      try {
         // create a new file with an ObjectOutputStream
         FileOutputStream out = new FileOutputStream("test.txt");
         ObjectOutputStream oout = new ObjectOutputStream(out);

         // write something in the file
         oout.writeInt(i);
         oout.writeInt(1653984);
         oout.flush();

         // create an ObjectInputStream for the file we created before
         ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt"));

         // read and print an int
         System.out.println("" + ois.readInt());

         // read and print an int
         System.out.println("" + ois.readInt());
      } catch (Exception ex) {
         ex.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

319874
1653984