Stack is an extension of the java.util.Vector class that provided a LIFO (last-in-first-out) data structure. This class provide the usual method such as push() and pop(). The peek method is used the get the top element of the stack without removing the item.

package org.kodejava.example.util;

import java.util.Stack;

public class StackExample {
    public static void main(String[] args) {
        Stack<Integer> stack = new Stack<Integer>();

        // We stored some values in the stack object.
        for (int i = 0; i < 10; i++) {
            stack.push(i);
            System.out.print(i + " ");
        }
        System.out.println("");

        // Searching for an item in the stack. The position returned
        // as the distance from the top of the stack. Here we search
        // for the 3 number in the stack which is in the 7th row of
        // the stack.
        int position = stack.search(3);
        System.out.println("Search result position: " + position);

        // The current top value of the stack
        System.out.println("Stack top: " + stack.peek());

        // Here we popping out all the stack object items.
        while (!stack.empty()) {
            System.out.print(stack.pop() + " ");
        }
    }
}

The result of the code snippet:

0 1 2 3 4 5 6 7 8 9 
Search result position: 7
Stack top: 9
9 8 7 6 5 4 3 2 1 0 

• About
• Latest Posts

Wayan Saryada

Founder at Kode Java Org

I am a programmer, a runner, a recreational diver, currently live in the island of Bali, Indonesia. Mostly programming in Java, Spring Framework, Hibernate / JPA. You can support my works by donating here. Thank you 🥳

Latest posts by Wayan Saryada (see all)

• How do I define access modifiers in Lombok’s @Getter and @Setter annotations? - December 21, 2018
• How do I generate getters and setters with Lombok? - December 21, 2018
• How do I write JSON string using JSON-Java (org.json) library? - August 31, 2018