Question

How to check if two lists have no common elements in Java

Answer 1

import java.util.*; 
 
public class MyClass {
    public static void main(String args[]) {
        List<String> list1 = new ArrayList<String>(); 
        list1.add("java"); 
        list1.add("c"); 
        list1.add("c++"); 
        
        List<String> list2 = new Vector<String>(); 
        list2.add("php"); 
        list2.add("nodejs"); 
        list2.add("python"); 
    
        System.out.println(Collections.disjoint(list1, list2)); 
    }
}
 
 
/*
run:
 
true
 
*/

 

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