Java Collections emptySortedSet() Method with Examples

by Online Tutorials Library July 22, 2022

Java Collections emptySortedSet() Method

The emptySortedSet() method of Java Collections class is used to get the sorted Set that has no elements. These empty Set are immutable in nature.

Syntax

Following is the declaration of emptySortedSet() method:

Parameter

This method does not accept any parameter.

Returns

The emptySortedSet() method returns an empty sorted Set.

Exceptions

Compatibility Version

Java 1.8 and above

Example 1

  import java.util.*;  public class CollectionsEmptySortedSetExample1 {  public static void main(String[] args) {       //Create an empty Sorted Set          SortedSet EmptySet = Collections.emptySortedSet();       System.out.println(“Empty Sorted Set: “+EmptySet);       }    }  

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Output:

Empty Sorted Set: []

Example 2

  import java.util.*;  public class CollectionsEmptySortedSetExample2 {  public static void main(String[] args) {  //Create an empty Sorted Set        SortedSet EmpSortSet = Collections.emptySortedSet();        System.out.println(“Created empty immutable Sorted Set: “+EmpSortSet);        //Try to add elements        EmpSortSet.add(“A”);        EmpSortSet.add(“B”);        }    }  

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Output:

Created empty immutable Sorted Set: []Exception in thread "main"   java.lang.UnsupportedOperationException  at java.base/java.util.Collections$UnmodifiableCollection.add(Collections.java:1056)  at myPackage.CollectionsEmptySortedSetExample2.main(CollectionsEmptySortedSetExample2.java:9)

Example 3

  import java.util.*;  public class CollectionsEmptySortedSetExample3 {  public static void main(String[] args) {  //Create an empty Sorted Set            SortedSet empSortSet = Collections.emptySortedSet();        empSortSet.add(1);        empSortSet.add(2);            System.out.println(“Created empty immutable Sorted Set: “+empSortSet);             }    }  

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Output:

Exception in thread "main" java.lang.UnsupportedOperationException  at java.base/java.util.Collections$UnmodifiableCollection.add(Collections.java:1056)  at myPackage.CollectionsEmptySortedSetExample3.main(CollectionsEmptySortedSetExample3.java:8)

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Java Collections emptySortedSet() Method with Examples

Java Collections emptySortedSet() Method

Syntax

Parameter

Returns

Exceptions

Compatibility Version

Example 1

Example 2

Example 3

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