testarraystack.java

this how we make stack and queue in java.

package stackqueue;

public class TestArrayStack {
	
	private ArrayStack myStack;
	
	public TestArrayStack() {
		myStack = new ArrayStack();	
	}
	public static void main(String[] args) {
		TestArrayStack test = new TestArrayStack();
		for (int i = 1; i < 16; i++) {
			test.myStack.push(i);
		}
		for (int i = 0; i < 15; i++) {
			try {
				System.out.println(test.myStack.topAndPop());
			}
			catch (UnderflowException ue) {
				System.out.println("" + ue);
			}
		}
		test.myStack.makeEmpty();
		if (test.myStack.isEmpty()) {
			System.out.println("The stack is empty");
		}
		try {
			System.out.println(test.myStack.top());
		}
		catch (UnderflowException ue) {
			System.out.println("" + ue);
		}
		test.myStack.push(100);
		try {
			System.out.println(test.myStack.topAndPop());
		}
		catch (UnderflowException ue) {
			System.out.println("" + ue);
		}

	}	

}