标签：stand next integer pre else numbers div where ext
Calculate a + b and output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unless there are less than four digits).
Input
Each input file contains one test case. Each case contains a pair of integers a and b where -1000000 <= a, b <= 1000000. The numbers are separated by a space.
Output
For each test case, you should output the sum of a and b in one line. The sum must be written in the standard format.
Sample Input
-1000000 9
Sample Output
-999,991
1 import java.util.Scanner; 2 3 4 public class Main { 5 public static void main(String[] args) { 6 Scanner input = new Scanner(System.in); 7 int a = input.nextInt(); 8 int b = input.nextInt(); 9 int sum = a+b; 10 String temp = sum+""; 11 if(sum<0){ 12 if(temp.length()<=4){ 13 System.out.println(sum);; 14 }else{ 15 int m = (temp.length()-1)%3; 16 System.out.print(temp.charAt(0)); 17 if(m==1){ 18 System.out.print(temp.charAt(1)); 19 } 20 if(m==2){ 21 System.out.print(temp.charAt(1)); 22 System.out.print(temp.charAt(2)); 23 } 24 for(int i=m+1;i<temp.length();i++){ 25 if((i-m-1)%3==0&&i!=1){ 26 System.out.print(","); 27 } 28 System.out.print(temp.charAt(i)); 29 30 } 31 } 32 }else{ 33 if(temp.length()<=3){ 34 System.out.println(sum);; 35 }else{ 36 int m = (temp.length())%3; 37 if(m==1){ 38 System.out.print(temp.charAt(0)); 39 } 40 if(m==2){ 41 System.out.print(temp.charAt(0)); 42 System.out.print(temp.charAt(1)); 43 } 44 for(int i=m;i<temp.length();i++){ 45 if((i-m)%3==0&&i!=0){ 46 System.out.print(","); 47 } 48 System.out.print(temp.charAt(i)); 49 } 50 } 51 } 52 } 53 }
标签：stand next integer pre else numbers div where ext
原文地址：http://www.cnblogs.com/lolybj/p/7124231.html
