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Java Collections - Collections.disjoint() Examples

[Last Updated: Nov 8, 2025]

Java Collections Java Java API 

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Class:

java.util.Collections

java.lang.Objectjava.lang.Objectjava.util.Collectionsjava.util.CollectionsLogicBig

Method:

public static boolean disjoint(Collection<?> c1,
                               Collection<?> c2)

Returns true if the two specified collections have no elements in common.


Examples


package com.logicbig.example.collections;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class DisjointExample {

    public static void main(String... args) {
        List<Integer> list = Arrays.asList(1, 2, 3, 4);
        List<Integer> list2 = Arrays.asList(10, 20, 30, 40, 50, 60);
        boolean b = Collections.disjoint(list, list2);
        System.out.println(b);
    }
}

Output

true




package com.logicbig.example.collections;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class DisjointExample2 {

    public static void main(String... args) {
        List<Integer> list = Arrays.asList(1, 2, 3, 4);
        List<Integer> list2 = Arrays.asList(10, 20, 30, 4, 50, 60);
        boolean b = Collections.disjoint(list, list2);
        System.out.println(b);
    }
}

Output

false

See Also