Java.io.StringReader.ready() Method

Description

The java.io.StringReader.ready() method tells whether this stream is ready to be read.

Declaration

Following is the declaration for java.io.StringReader.ready() method

public boolean ready()

Parameters

• NA

Return Value

This method returns true if the next read() is guaranteed not to block for input

Exception

• IOException -- If an I/O error occurs

Example

The following example shows the usage of java.io.StringReader.ready() method.

package com.tutorialspoint;

import java.io.*;

public class StringReaderDemo {

   public static void main(String[] args) {

      String s = "Hello World";

      // create a new StringReader
      StringReader sr = new StringReader(s);

      try {
         // check if reader is ready
         System.out.println("" + sr.ready());

         // read the first five chars
         for (int i = 0; i < 5; i++) {
            char c = (char) sr.read();
            System.out.print("" + c);
         }

         // close the stream
         sr.close();

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

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

true
Hello