How to get Subset from a Set in Java - Step by Step Examples

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How to get Subset from a Set in Java ?

Answer

To get a sub Set in Java, you can use the subSet method.

✐ Examples

1 Get Sub Set with Items

In this example,

We define a Set named mySet containing elements of a specific type.
We specify the range of indices to extract the sub Set.
We use the subSet method with the specified range to get the sub Set.

Java Program

import java.util.*;

public class Main {
    public static void main(String[] args) {
        // Define Set with items
        Set<String> mySet = new HashSet<>(Arrays.asList("apple", "banana", "orange", "grape", "melon"));

        // Get sub Set with items
        Set<String> subSet = new HashSet<>(mySet.subSet("banana", "orange"));
        System.out.println("Sub Set with items: " + subSet);
    }
}

Output

Sub Set with items: [banana, grape]

2 Get Sub Set from Empty Set

In this example,

We define an empty Set named mySet.
We attempt to get a sub Set from the empty Set, which results in an empty sub Set.

Java Program

import java.util.*;

public class Main {
    public static void main(String[] args) {
        // Define empty Set
        Set<String> mySet = new HashSet<>();

        // Get sub Set from empty Set
        Set<String> subSet = new HashSet<>(mySet.subSet("banana", "orange"));
        System.out.println("Sub Set from empty Set: " + subSet);
    }
}

Output

Sub Set from empty Set: []

Summary

In this tutorial, we learned How to get Subset from a Set in Java language with well detailed examples.

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How to get Subset from a Set in Java - Step by Step Examples

How to get Subset from a Set in Java ?

Answer

✐ Examples

1 Get Sub Set with Items

Java Program

Output

2 Get Sub Set from Empty Set

Java Program

Output

Summary

More Java Sets Tutorials