java string formatting round floats code example

Example 1: Display double in decimal places java

double input = 3.14159265359;
System.out.format("double : %.2f", input); // 3.14
System.out.println("double : " + String.format("%.2f", input)); // 3.14

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

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