I need to be able to format my output which is a double to 2 decimal places

Question

I'm reading and writing a file, but I need the output to be formatted to 2 decimal places? How do you do "writer.write" with a double and format it?

Answer 1

System.out.printf("%.02f", 0.1234); 

Output:

0.12

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System.out.printf("%.02f", 0.1); 

Ouput:

 0.10

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OR:

new DecimalFormat("#.##").format(1.199);

Results in:

1.2