MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

/*
 * Output:
 * buffer before = Hello
   charAt(1) before = e
   buffer after = Hillo
   charAt(1) after = i
       
 * */
public class MainClass {
    public static void main(String args[]) {
        StringBuffer sb = new StringBuffer("Hello");
        System.out.println("buffer before = " + sb);
        System.out.println("charAt(1) before = " + sb.charAt(1));
        sb.setCharAt(1, 'i');
        System.out.println("buffer after = " + sb);
        System.out.println("charAt(1) after = " + sb.charAt(1));

    }
}