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What is the importance of a StringWriter in Java?
The StringWriter class is s subclass of Writer class and it writes the String to an output stream. To write a string, this character stream collects the string into a string buffer and then constructed a string. The buffer of StringWriter automatically grows according to data. The important methods of StringWriter class are write(), append(), getBuffer(), flush() and close().
Syntax
public class StringWriter extends Writer
Example
import java.io.*;
public class StringWriterTest {
public static void main(String args[]) {
String str = "Welcome to Tutorials Point";
try {
StringWriter sw = new StringWriter();
sw.write(str);
StringBuffer sb = new StringBuffer();
sb = sw.getBuffer();
System.out.println("StringBuffer: "+ sb);
System.out.println("String written by StringWriter: "+ sw);
sw.close();
} catch (IOException ioe) {
System.out.println(ioe);
}
}
}
Output
StringBuffer: Welcome to Tutorials Point String written by StringWriter: Welcome to Tutorials Point
Updated on: 22-Nov-2023
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