java how to make a float have only one number decimal code example

Example 1: how to set 2 decimal places in java

DecimalFormat df = new DecimalFormat();
df.setMaximumFractionDigits(2);
System.out.println(df.format(decimalNumber));

Example 2: how to format a double in java to 2 decimal places

DecimalFormat df = new DecimalFormat("#.00");