Java Stack - isEmpty() Method
The java.util.Stack.isEmpty() method is used to check whether the stack is empty or not. It returns true if the size of the stack is zero, else returns false.
Syntax
public boolean isEmpty()
Parameters
No parameter is required.
Return Value
true if the stack is empty, else returns false.
Exception
NA
Example:
In the example below, the java.util.Stack.isEmpty() method is used to check whether the stack is empty or not.
import java.util.*;
public class MyClass {
public static void main(String[] args) {
//creating a stack
Stack<String> MyStack = new Stack<String>();
//checking stack
System.out.println("Is MyStack empty?: " + MyStack.isEmpty());
//populating stack
MyStack.push("Alpha");
MyStack.push("Coding");
MyStack.push("Skills");
//checking stack
System.out.println("Is MyStack empty?: " + MyStack.isEmpty());
}
}
The output of the above code will be:
Is MyStack empty?: true Is MyStack empty?: false
❮ Java.util - Stack
