How to remove .0 after a double while converting to string

Question

What is the best way to convert a double xx.xx to the following strings in Java?

• 22.0 to 22
• 22.1 to 22.1
• 22.22 to 22.22
• 22.00 to 22

If the decimal part is 0, just need the whole number.

Answer 1

Use the class DecimalFormat

double d = 2.0;
DecimalFormat formatter = new DecimalFormat("0.##");
String formated = formatter.format(d).toString();

Answer 2

The code finally decided is as below.

If you use DecimalFormat and specify # in the pattern it only displays the value if it is not zero.

    Double d=22.00 
    DecimalFormat format = new DecimalFormat("###.##");
    format.format(d);