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()

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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