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Java program to get the topmost element from Stack collection without removing it

Java example to get the topmost element from Stack collection without removing it.
Submitted by Nidhi, on April 25, 2022

Problem statement

In this program, we will create a stack using Stack Collection and add elements to it. Then we will get the top-most element from the stack without removing it using the peek() method.

Source Code

The source code to get the topmost element from the Stack collection without removing it is given below. The given program is compiled and executed successfully.

// Java program to get the topmost element from Stack collection 
// without removing it

import java.io.*;
import java.util.*;

public class Main {
  public static void main(String[] args) {
    Stack cars = new Stack();

    cars.push("Maruti");
    cars.push("Tata");
    cars.push("Hundai");
    cars.push("Honda");

    System.out.println("Elements from top of Stack: " + cars.peek());
    System.out.println("Stack elements: \n" + cars);
  }
}

Output

Elements from top of Stack: Honda
Stack elements: 
[Maruti, Tata, Hundai, Honda]

Explanation

In the above program, we imported the "java.io.*" and "java.util.*" packages to use the Stack collection class. Here, we created a class Main. The Main class contains a main() method. The main() method is the entry point for the program.

In the main() method, we created a Stack collection and add elements to it. Then we got an element from the TOP of the stack using the peek() method and printed the result.

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