Java.lang.StringBuilder.append() Method

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Description

The java.lang.StringBuilder.append(char c) method appends the string representation of the char argument to this sequence.The argument is appended to the contents of this sequence. The length of this sequence increases by 1.

Declaration

Following is the declaration for java.lang.StringBuilder.append() method

public StringBuilder append(char c)

Parameters

  • c -- This is the char value.

Return Value

This method returns a reference to this object.

Exception

  • NA

Example

The following example shows the usage of java.lang.StringBuilder.append() method.

package com.tutorialspoint;

import java.lang.*;

public class StringBuilderDemo {

  public static void main(String[] args) {
  
    StringBuilder str = new StringBuilder("tuts ");
    System.out.println("string = " + str);
    
    // appends the char argument as string to the StringBuilder.
    str.append('A');
    // print the StringBuilder after appending
    System.out.println("After append = " + str);
    
    str = new StringBuilder("abcd ");
    System.out.println("string = " + str);
    // appends the char argument as string to the StringBuilder.    
    str.append('!');
    // print the StringBuilder after appending
    System.out.println("After append = " + str);
  }
}  

Let us compile and run the above program, this will produce the following result:

string = tuts
After append = tuts A
string = abcd
After append = abcd !



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