In this section, you will learn about how you can use underscore in Numeric Literals in Java SE 7.
In Java SE 7, You can place any number of underscore( _ ) between digits of numeric literals. This added feature improves the readability of the code. For example : Using underscore you can separate groups of digits in numeric literals . For Example credit card number can be write as follows :
long creditCardNumber = 1234_5678_9012_3456L;
You can place underscore between digits. But for placing underscore you need to be careful. You can't place underscore in the following places :
Some of the valid example with different type of data type is given below :
Some of the invalid examples are given below :
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