Java.io.PrintWriter.checkError() Method

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Description

The java.io.PrintWriter.checkError() method Flushes the stream if it's not closed and checks its error state.

Declaration

Following is the declaration for java.io.PrintWriter.checkError() method.

public boolean checkError()

Parameters

NA

Return Value

This method returns true if the print stream has encountered an error, either on the underlying output stream or during a format conversion.

Exception

NA

Example

The following example shows the usage of java.io.PrintWriter.checkError() method.

package com.tutorialspoint;

import java.io.*;

public class PrintWriterDemo {
   public static void main(String[] args) {
      String s = "Hello World ";

      // create a new stream at system
      PrintWriter pw = new PrintWriter(System.out);

      // append the sequence
      pw.append(s);

      // check if there is an error and flush
      System.out.println("" + pw.checkError());
   }
}

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

Hello World false