class MainClass {
public static void main(String[] args) {
StringBuffer sb = new StringBuffer("abc");
System.out.println("sb = " + sb);
System.out.println("Length = " + sb.length());
System.out.println("Capacity = " + sb.capacity());
sb.setLength(2);
System.out.println("sb = " + sb);
System.out.println("Length = " + sb.length());
System.out.println("Capacity = " + sb.capacity());
sb.setLength(4);
System.out.println("sb = " + sb);
System.out.println("Length = " + sb.length());
System.out.println("Capacity = " + sb.capacity());
}
}