Converting number to comma separated format in java [duplicate]

This question already has answers here: Closed 11 years ago. 开发者_开发百科

Possible Duplicate:

Displaying Currency in Indian Numbering Format

I have input number "123456" and want to convert it to "1,23,456" format in Java?

1234--> 1,234 and vice versa.

Any string operations present in Java library?

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try java.text.NumberFormat for number formatting