how to display int upto 6 decimal places in java code example

Example 1: decimal up to 6 places in java

double num = 1.34567;
System.out.format("%.4f", num);

Example 2: how to set 2 decimal places in java

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