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Java Collections emptyList() Method

The emptyList() method of Java Collections class is used to get a List that has no elements. These empty list are immutable in nature.

Syntax

Following is the declaration of emptyList() method:

Parameter

This method does not accept any parameter.

Returns

The emptyList() method returns an empty immutable list.

Exceptions

NA

Compatibility Version

Java 1.5 and above

Example 1

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Output:

Empty list: []

Example 2

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Output:

Created empty immutable list: []
Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util.AbstractList.add(AbstractList.java:153)
	at java.base/java.util.AbstractList.add(AbstractList.java:111)
	at myPackage.CollectionsEmptyListExample1.main(CollectionsEmptyListExample1.java:9)

Example 3

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Output:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util.AbstractList.add(AbstractList.java:153)
	at java.base/java.util.AbstractList.add(AbstractList.java:111)
	at myPackage.CollectionsEmptyListExample3.main(CollectionsEmptyListExample3.java:8)





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