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]
