StringBuffer Class in java

The StringBuffer class  is used to created mutable string.The StringBuffer class is same as string except. It is mutable.

Counstructor:-

StringBuffer();
StringBuffer(String str);
StringBuffer(int capacity);

 Example:-


class A{

 public static void main(String args[]){

  StringBuffer buffer  =  new StringBuffer("Hello");

     buffer.append("Java");
  System.out.println(sb);
}

}