The capacity() method of Stack Class is used to get the capacity of this Stack. That is the number of elements present in this stack container.
Syntax:
public int capacity()
Parameters: This function accepts a parameter E obj which is the object to be added at the end of the Stack.
Return Value: The method returns integer value which is the capacity of the Stack
Below program illustrate the Java.util.Stack.capacity() method:
Example 1:
// Java code to illustrate boolean capacity() import java.util.*;import java.util.ArrayList; public class GFG { public static void main(String args[]) { // Creating an empty Stack Stack<String> stack = new Stack<String>(); // Use add() method to add elements in the Stack stack.add("Geeks"); stack.add("for"); stack.add("Geeks"); stack.add("10"); stack.add("20"); // Displaying the Stack System.out.println("The Stack is: " + stack); // checking capacity System.out.println("Capacity: " + stack.capacity()); }} |
Output:
The Stack is: [Geeks, for, Geeks, 10, 20] Capacity: 10
Example 2:
// Java code to illustrate// boolean add(Object element) import java.util.*; public class StackDemo { public static void main(String args[]) { // Creating an empty Stack Stack<Integer> stack = new Stack<Integer>(); // Use add() method // to add elements in the Stack stack.add(10); stack.add(20); stack.add(30); stack.add(40); stack.add(50); // Displaying the Stack System.out.println("The Stack is: " + stack); // checking capacity System.out.println("Capacity: " + stack.capacity()); }} |
Output:
The Stack is: [10, 20, 30, 40, 50] Capacity: 10
