StringWriter close() method in Java with Examples

Last Updated : 29 Jan, 2019

The close() method oStringWriter Class in Java is used to close the writer. Closing a writer deallocates any value in it or any resources associated with it. The StringWriter instance once closed won’t work. Also a StringWriter instance once closed cannot be closed again.

Syntax:

public void close()

Parameters: This method does not accepts any parameter.

Return Value: This method does not returns any value. It just closes the Stream.

Below programs illustrates the working of close() method:

Program 1:

// Java program to demonstrate 
// StringWriter close() 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 StringWriter instance 
            StringWriter writer 
                = new StringWriter(); 
  
            // Write the above string to this writer 
            // This will put the string in the writer 
            // till it is printed on the console 
            writer.write(str); 
  
            System.out.println(writer.toString()); 
  
            // Now close the writer 
            // using close() method 
            writer.close(); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
} 

Output:

GeeksForGeeks

Program 2:

// Java program to demonstrate 
// StringWriter close() method 
  
import java.io.*; 
  
class GFG { 
    public static void main(String[] args) 
    { 
  
        try { 
  
            // Create a StringWriter instance 
            StringWriter writer 
                = new StringWriter(); 
  
            // Write the char to this writer 
            // This will put the char in the writer 
            // till it is printed on the console 
            writer.write(65); 
  
            System.out.println(writer.toString()); 
  
            // Now close the writer 
            // using close() method 
            writer.close(); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
} 

Output:

StringWriter flush() method in Java with Examples

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StringWriter close() method in Java with Examples

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