Java Collections unmodifiableSortedMap() Method21 Mar 2025 | 2 min read The unmodifiableSortedMap() method of Java Collections class is used to get an unmodifiable view of the specified sorted map. SyntaxFollowing is the declaration of unmodifiableSortedMap() method: Parameter
ReturnsThe unmodifiableSortedMap() method returns an unmodifiable view of the specified sorted map. ExceptionsNA Example 1Output:
Original Map: {1=1001, 2=1002, 3=1003, 4=1004}
Unmodifiable Sorted Map: {1=1001, 2=1002, 3=1003, 4=1004, 5=1005}
Example 2Output:
Original Map: {1=Whatsapp, 2=Twitter, 3=Facebook, 4=Instagram}
Unmodifiable Sorted Map: {1=Whatsapp, 2=Twitter, 3=Facebook, 4=Instagram, 5=Hangout}
Example 3Output:
Original Map: {1=one, 2=two}
Exception in thread "main" java.lang.UnsupportedOperationException
at java.base/java.util.Collections$UnmodifiableMap.remove(Collections.java:1456)
at myPackage.CollectionsUnmodifiableSortedMapExample3.main(CollectionsUnmodifiableSortedMapExample3.java:10)
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