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Java Collections rotate() Method

The rotate() method of Java Collections class is used to rotate the elements in the specified list by a given distance.


Following is the declaration of rotate() method:


Parameter Description Required/Optional
list It is the list which will be rotated. Required
distance It is the distance which will rotate the list. It may be zero, negative, or greater than size of list. Required


The rotate() method does not return anything.


UnsupportedOperationException- It throws this type of exception if the specified list or its list-iterator does not support the set operation.

Compatibility Version

Java 1.4 and above

Example 1

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Original List : [Java, Python, Cobol, Perl, Android]
Rotated List: [Cobol, Perl, Android, Java, Python]

Example 2

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Value Before Rotation: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Value After Rotation: [6, 7, 8, 9, 10, 1, 2, 3, 4, 5]

Example 3

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Original Array: [10, 20, 30, 40, 50]
Modified Array: [30, 40, 50, 10, 20]

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