Java2

import java.util.Scanner;

public class Stack {
private static final int MAX_SIZE = 10;
private int[] stackArray;
private int top;

public Stack() {
    stackArray = new int[MAX_SIZE];
    top = -1;
}

public void push(int value) {
    if (top < MAX_SIZE - 1) {
        stackArray[++top] = value;
        System.out.println("Pushed: " + value);
    } else {
        System.out.println("Stack Overflow! Cannot push " + value + ".");
    }
}

public int pop() {
    if (top >= 0) {
        int poppedValue = stackArray[top--];
        System.out.println("Popped: " + poppedValue);
        return poppedValue;
    } else {
        System.out.println("Stack Underflow! Cannot pop from an empty stack.");
        return -1; // Return a default value for simplicity
    }
}

public int peek() {
    if (top >= 0) {
        System.out.println("Peeked: " + stackArray[top]);
        return stackArray[top];
    } else {
        System.out.println("Stack is empty. Cannot peek.");
        return -1; // Return a default value for simplicity
    }
}

public void display() {
    if (top >= 0) {
        System.out.print("Stack Contents: ");
        for (int i = 0; i <= top; i++) {
            System.out.print(stackArray[i] + " ");
        }
        System.out.println();
    } else {
        System.out.println("Stack is empty.");
    }
}

public boolean isEmpty() {
    return top == -1;
}

public boolean isFull() {
    return top == MAX_SIZE - 1;
}

public static void main(String[] args) {
    Stack stack = new Stack();
    Scanner scanner = new Scanner(System.in);

    int choice;

    do {
        System.out.println("\nStack Menu:");
        System.out.println("1. Push");
        System.out.println("2. Pop");
        System.out.println("3. Peek");
        System.out.println("4. Display Stack Contents");
        System.out.println("5. Check if the stack is empty");
        System.out.println("6. Check if the stack is full");
        System.out.println("0. Exit");

        System.out.print("Enter your choice: ");
        choice = scanner.nextInt();

        switch (choice) {
            case 1:
                System.out.print("Enter the value to push: ");
                int valueToPush = scanner.nextInt();
                stack.push(valueToPush);
                break;
            case 2:
                stack.pop();
                break;
            case 3:
                stack.peek();
                break;
            case 4:
                stack.display();
                break;
            case 5:
                System.out.println("Is the stack empty? " + stack.isEmpty());
                break;
            case 6:
                System.out.println("Is the stack full? " + stack.isFull());
                break;
            case 0:
                System.out.println("Exiting the program. Goodbye!");
                break;
            default:
                System.out.println("Invalid choice. Please try again.");
        }
    } while (choice != 0);

    scanner.close();
}

}