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PrintStream clearError() method in Java with Examples

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  • Last Updated : 31 Jan, 2019
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The clearError() method of PrintStream Class in Java is used to clear the error state of this PrintStream instance. It clears any error that might have or not happened in the stream. Hence the checkError() method will always return false after this method.

Syntax:

protected void clearError()

Parameters: This method do not accepts any parameter.

Return Value: This method do not returns any value.

Below methods illustrates the working of clearError() method:

Program 1:




// Java program to demonstrate
// PrintStream clearError() method
  
import java.io.*;
  
class GFG extends PrintStream {
  
    // Defining the protected constructor
    public GFG(OutputStream out)
    {
        super(System.out);
    }
  
    // Driver Code
    public static void main(String[] args)
    {
  
        // The string to be written in the Stream
        String str = "GeeksForGeeks";
  
        try {
  
            // Create a PrintStream instance
            GFG stream
                = new GFG(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 clear the stream
            // using clearError() method
            stream.clearError();
  
            System.out.println("\nHas any error occurred: "
                               + stream.checkError());
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:

GeeksForGeeks
Has any error occurred: false

Program 2:




// Java program to demonstrate
// PrintStream clearError() method
  
import java.io.*;
  
class GFG extends PrintStream {
  
    // Defining the protected constructor
    public GFG(OutputStream out)
    {
        super(System.out);
    }
  
    // Driver Code
    public static void main(String[] args)
    {
  
        // The string to be written in the Stream
        String str = "GeeksForGeeks";
  
        try {
  
            // Create a PrintStream instance
            GFG stream
                = new GFG(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 clear the stream
            // using clearError() method
            stream.clearError();
  
            System.out.println("\nHas any error occurred: "
                               + stream.checkError());
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:

A
Has any error occurred: false

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