PrintStream checkError() method in Java with Examples

The checkError() method of PrintStream Class in Java is used to check the error state of this PrintStream instance. This method flushes the stream in order to check the error state. It returns a boolean value that tells if the stream has encountered any error or not.

Syntax:

public boolean checkError()

Parameters: This method do not accepts any parameter.



Return Value: This method returns a boolean value stating whether the Stream has encountered any error or not. It returns true if any error has been encountered. Else it returns false.

Below methods illustrates the working of checkError() method:

Program 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to demonstrate
// PrintStream checkError() method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        // The string to be written in the Stream
        String str = "GeeksForGeeks";
  
        try {
  
            // Create a PrintStream instance
            PrintStream stream
                = new PrintStream(System.out);
  
            // Write the above string to this stream
            // This will put the string in the stream
            // till it is printed on the console
            stream.print(str);
  
            // Now check the stream
            // using checkError() method
            System.out.println("\nHas any error occurred: "
                               + stream.checkError());
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

chevron_right


Output:

GeeksForGeeks
Has any error occurred: false

Program 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to demonstrate
// PrintStream checkError() method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a PrintStream instance
            PrintStream stream
                = new PrintStream(System.out);
  
            // Write the char to this stream
            // This will put the char in the stream
            // till it is printed on the console
            stream.write(65);
  
            // Now check the stream
            // using checkError() method
            System.out.println("\nHas any error occurred: "
                               + stream.checkError());
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

chevron_right


Output:

A
Has any error occurred: false


My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.