Stack toString() method in Java with Example

The toString() method of Java Stack is used to return a string representation of the elements of the Collection.

The String representation comprises a set representation of the elements of the Collection in the order they are picked by the iterator closed in square brackets[].This method is used mainly to display collections other than String type(for instance: Object, Integer)in a String Representation.

Syntax:

public String toString()

Parameter The method does not take any parameters.

Return This method returns a String representation of the collection.

Below examples illustrate the toString() method:

Example 1:

// Java program to demonstrate
// Stack toString() method

import java.util.*;

public class collection {
    public static void main(String args[])
    {
        // Creating an Empty Stack
        Stack<String> stack
            = new Stack<String>();

        // Use add() method
        // to add elements to the Collection
        stack.add("Welcome");
        stack.add("To");
        stack.add("Geeks");
        stack.add("For");
        stack.add("Geeks");

        // Using toString() method
        System.out.println(stack.toString());
    }
}

Output:

[Welcome, To, Geeks, For, Geeks]

Example 2:

// Java program to demonstrate
// Stack toString() method

import java.util.*;

public class collection {
    public static void main(String args[])
    {
        // Creating an Empty Stack
        Stack<Integer> stack
            = new Stack<Integer>();

        // Use add() method
        // to add elements to the Collection
        stack.add(10);
        stack.add(20);
        stack.add(30);
        stack.add(40);

        // Using toString() method
        System.out.println(stack.toString());
    }
}

Output:

[10, 20, 30, 40]