Java.io.ObjectInputStream.readLine() Method

Description

The java.io.ObjectInputStream.readLine() method reads in a line that has been terminated by a \n, \r, \r\n or EOF.

This method is Deprecated.This method does not properly convert bytes to characters. see DataInputStream for the details and alternatives.

Declaration

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

public String readLine()

Parameters

• NA

Return Value

This method returns a String copy of the line.

Exception

• IOException − if there are I/O errors while reading from the underlying InputStream

Example

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

package com.tutorialspoint;

import java.io.*;

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


      String s="Hello \n World!";
      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.writeUTF(s);
         oout.flush();

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

         // read and print a line
         System.out.println("" + ois.readLine());


      } catch (Exception ex) {
         ex.printStackTrace();
      }

   }
}

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

Hello