format double to 3 decimal places java code example

Example 1: java double format

NumberFormat formatter = new DecimalFormat("#0.00");     
System.out.println(formatter.format(4.0));

Example 2: 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