//Sting Buffer Class
class String3{
public static void main(String[] args){
	StringBuffer sb1= new StringBuffer("tebcchnology");
	boolean b=false;
	char c='A';
	char a[] = {'a','b','c'};
	sb1.insert(2,a,1,2);
	sb1.insert(2,c);
	sb1.insert(2,b);
	sb1.insert(2,a);
	System.out.println(sb1);
	
		
		
		
		
}
}