Convert a number to 2 decimal places in Java

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孤街浪徒
孤街浪徒 2020-12-01 15:31

I want to convert a number to a 2 decimal places (Always show two decimal places) in runtime. I tried some code but it only does, as shown below

 20.03034 &g         


        
4条回答
  •  不思量自难忘°
    2020-12-01 16:27

    try this new DecimalFormat("#.00");

    update:

        double angle = 20.3034;
    
        DecimalFormat df = new DecimalFormat("#.00");
        String angleFormated = df.format(angle);
        System.out.println(angleFormated); //output 20.30
    

    Your code wasn't using the decimalformat correctly

    The 0 in the pattern means an obligatory digit, the # means optional digit.

    update 2: check bellow answer

    If you want 0.2677 formatted as 0.27 you should use new DecimalFormat("0.00"); otherwise it will be .27

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