StringWriter write(char[], int, int) method in Java with Examples

Last Updated : 11 Jul, 2025

The write(char[], int, int) method of StringWriter Class in Java is used to write a specified portion of the specified character array on the writer. This character array is taken as a parameter. The starting index and length of characters to be written are also taken as parameters. Syntax:

public void write(char[] charArray, int startingIndex, int lengthOfCharArray)

Parameters: This method accepts three mandatory parameters:

charArray which is the character array to be written in the writer.
startingIndex which is the starting index from which the portion of character is to taken.
lengthOfCharArray which is the length of characters to be written on the writer.

Return Value: This method does not returns any value. Below programs illustrates the working of write(char[], int, int) method: Program 1:

Java

// Java program to demonstrate // StringWriter write(char[], int, int) method import java.io.*; class GFG {  public static void main(String[] args)  {  try {  // Create a StringWriter instance  StringWriter writer  = new StringWriter();  // Get the character array  // to be written in the writer  char[] charArray = { 65, 66, 67 };  // Get the starting index  int startingIndex = 0;  // Get the length of char  int lengthOfCharArray = 1;  // Write the portion of the charArray  // to this writer using write() method  // This will put the charArray in the writer  // till it is printed on the console  writer.write(charArray,  startingIndex,  lengthOfCharArray);  System.out.println(writer.toString());  }  catch (Exception e) {  System.out.println(e);  }  } }

Output:

Program 2:

Java

// Java program to demonstrate // StringWriter write(char[], int, int) method import java.io.*; class GFG {  public static void main(String[] args)  {  try {  // Create a StringWriter instance  StringWriter writer  = new StringWriter();  // Get the character array  // to be written in the writer  char[] charArray = { 97, 98, 99 };  // Get the starting index  int startingIndex = 2;  // Get the length of char  int lengthOfCharArray = 1;  // Write the portion of the charArray  // to this writer using write() method  // This will put the charArray in the writer  // till it is printed on the console  writer.write(charArray,  startingIndex,  lengthOfCharArray);  System.out.println(writer.toString());  }  catch (Exception e) {  System.out.println(e);  }  } }