formatintegers.java

来自「《A first book of java》by Gary J.Bronson 」· Java 代码 · 共 17 行

import java.text.*; // this is required to access the NumberFormat class
public class FormatIntegers
{
  public static void main(String[] args)
  {
     // this sets up the desired format
    NumberFormat num = NumberFormat.getInstance();
    num.setMinimumIntegerDigits(3);
       
    System.out.println(num.format(6));
    System.out.println(num.format(18));
    System.out.println(num.format(124));
    System.out.println("---");
    System.out.println(num.format(6+18+124));
  }
}