java.util.Stack.empty() Method


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Description

The empty() method is used to test if this stack is or not.

Declaration

Following is the declaration for java.util.Stack.empty() method.

public boolean empty()

Parameters

NA

Return Value

The method call returns 'true' if and only if this stack contains no items; false otherwise.

Exception

NA

Example

The following example shows the usage of java.util.Stack.empty()

Live Demo
package com.tutorialspoint;

import java.util.*;

public class StackDemo {
   public static void main(String args[]) {

      // creating stack
      Stack st = new Stack();

      // populating stack
      st.push("Java");
      st.push("Source");
      st.push("code");

      // checking stack
      System.out.println("Is stack empty: "+st.empty());
   }    
}

Let us compile and run the above program, this will produce the following result.

Is stack empty: false

java_util_stack.htm

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