Autoboxing

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Before JDK 5.0, the conversion between primitive types and their wrapper classes was not automatic. To convert from a primitive type to a wrapper object, add a constructor call.

5.0	1.4
Integer wrapper = n;	Integer wrapper = new Integer(n);

To convert a wrapper to a primitive type value, add calls to methods intValue, doubleValue, and so on.

5.0	1.4
int n = wrapper;	int n = wrapper.intValue();

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