# Format double to 2 decimals

Given a double value val, the twoDecimals method should return a string version of val rounded to exactly two decimal places. There should always be exactly two decimals, even when one or both are zero.

Examples:

twoDecimals(1.23456) => "1.23"
twoDecimals(1.0) => "1.00"
twoDecimals(1234.7777) => "1234.78"


Hints: You're probably going to want to use String.format() for this. It's very similar to printf except that it returns the string instead of outputting it.

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