Java Program to Check if a set is the subset of another set

Situatie

In this example, we will learn to check if a set is the subset of another set in Java.

Solutie

Pasi de urmat

import java.util.HashSet;
import java.util.Set;

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

// create the first set
Set<Integer> numbers = new HashSet<>();
numbers.add(1);
numbers.add(2);
numbers.add(3);
numbers.add(4);
System.out.println(“Numbers: ” + numbers);

// create the second set
Set<Integer> primeNumbers = new HashSet<>();
primeNumbers.add(2);
primeNumbers.add(3);
System.out.println(“Prime Numbers: ” + primeNumbers);

// check if primeNumbers is a subset of numbers
boolean result = numbers.containsAll(primeNumbers);
System.out.println(“Is Prime Numbers is subset of Numbers? ” + result);
}
}

Output

Numbers: [1, 2, 3, 4]
Prime Numbers: [2, 3]
Is Prime Numbers is subset of Numbers? true

Tip solutie

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