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StringWriter close() method in Java with Examples

Last Updated : 29 Jan, 2019
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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
// 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
// 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:
A

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