StackCreation

class Stack1{
	private char q[];
	private int tos;
	int length;
	
	Stack1(int size){
		q = new char [size];
		tos = 0;
		length = size;
	}
	void push(char ch) {
		if(tos == q.length) {
			System.out.println("full");
			return;
		}
		q[tos] = ch;
		tos++;
	}
	char pop() {
		if(tos == 0) {
			System.out.println("empty");
			return (char) 0;
		}
		tos--;
		return q[tos];
	}
	
}
public class Test {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Stack1 q = new Stack1(10);
		char ch;
		for(int i=0; i<(q.length);i++) {
			q.push((char)('A'+i));

		}
		for(int i=0; i<(q.length);i++) {
			ch = q.pop();
			if(ch != (char) 0) System.out.print(ch);
		}
		System.out.println();

	}

}