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Java Integer class

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Java provides wrapper classes corresponding to each primitive data types in its "lang" package.

Java Integer class

     

Java provides wrapper classes corresponding to each primitive data types in its "lang" package. These classes represent the primitive values as objects offers utility methods to manipulate the values. For example, Integer class wraps a value of type int in an object. It's constructor can take int value or integer value in String format. Converting primitive types into the corresponding wrapper object can be helpful in situations where only objects can be utilized. For example, if you want to store a set of int values in a Vector, the values in a Vector must be objects and not primitives. In that case you need to convert int values into Integer objects.

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Posted on: June 17, 2009

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