Java Advanced Data Formatting

1.         // take an integer  
2.         System.out.println(new DecimalFormat("0").format(pi));// 3  
3.         // take one integer and two decimals  
4.         System.out.println(new DecimalFormat("0.00").format(pi));// 3.14  
5.         // Take two integers and three decimals, and fill in the missing part of the integer with 0.  
6.         System.out.println(new DecimalFormat("00.000").format(pi));// 03.142  
7.         // get all integer parts  
8.         System.out.println(new DecimalFormat("#").format(pi));// 3  
9.         // Count as a percentage with two decimal places  
10.         System.out.println(new DecimalFormat("#.##%").format(pi));// 314.16%  
11.   
12.         long c = 299792458;  
13.         // Display in scientific notation with five decimal places  
14.         System.out.println(new DecimalFormat("#.#####E0").format(c));// 2.99792E8  
15.         // Display scientific notation as a two-digit integer with four decimal places  
16.         System.out.println(new DecimalFormat("00.####E0").format(c));// 29.9792E7  
17.         // Each three digits are separated by commas.  
18.         System.out.println(new DecimalFormat(",###").format(c));// 299,792,458  
19.         // embed formatting into text  
20.         System.out.println( new  DecimalFormat( "The speed of light is per second, ###meters." ).format(c));