The java.lang.Long.longValue() is an inbuilt method of the Long class in Java which returns the value of this Long object as a long after the conversion.
public long longValue()
Parameters: This method do not take any parameters.
Return Value: This method will return the numeric value represented by this object after conversion to long type.
Input: 5366623 Output: (Long) 5366623 Input: -6723887 Output: (Long) -6723887 Explanation: When the number is passed in this object it will convert that to long and gives the value like, Long lobject = new Long(5366623) It will return 5366623 as long.
Below programs illustrate the working of java.lang.Long.longValue() method.
Program 1: For a positive number.
The Value of nl as long is = 77387187 The Value of nl2 as long is = -6723887
Program 2: For a very large no.
// It will produce compile time error.
prog.java:9: error: integer number too large: 97387717187 Long lobject = new Long(97387717187); ^ 1 error
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