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Java program to check whether a Stack collection is empty or not

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Java program to check whether a Stack collection is empty or not

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Program/Source Code:

The source code to check whether a Stack collection is empty or not is given below. The given program is compiled and executed successfully.

// Java program to check whether a Stack collection 
// is empty or not

import java.io.*;
import java.util.*;

public class Main {
  public static void main(String[] args) {
    Stack cars = new Stack();
    Stack stk = new Stack();

    cars.push("Maruti");
    cars.push("Tata");
    cars.push("Hundai");
    cars.push("Honda");

    if (cars.empty())
      System.out.println("Stack car is empty.");
    else
      System.out.println("Stack car is not empty.");

    if (stk.empty())
      System.out.println("Stack stk is empty.");
    else
      System.out.println("Stack stk is not empty.");
  }
}

Output:

Stack car is not empty.
Stack stk is empty.

Explanation:

In the above program, we imported the "java.io.*" and "java.util.*" packages to use the Stack collection class. Here, we created a class Main. The Main class contains a main() method. The main() method is the entry point for the program.

In the main() method, we created two Stack collections. Then we checked whether created stacks are empty or not using the empty() method. After that, we printed the appropriate message.

 

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