POJ 1004 Financial Management

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Description

Input

Output

Sample Input

100.00
489.12
12454.12
1234.10
823.05
109.20
5.27
1542.25
839.18
83.99
1295.01
1.75

Sample Output

$1581.42

Source

Mid-Atlantic 2001

以下代码可以通过。

import java.util.*;
import java.text.*;

public class Main {
	public static void main(String[] args){
		Scanner cin = new Scanner(System.in);
		
		float value = 0;
		float temp = 0;
		
		for(int i=0; i<12; i++){
			temp = Float.valueOf(cin.nextLine()).floatValue();
			value += temp;
		}
		cin.close();
		value = value / 12;
		
		DecimalFormat df = new DecimalFormat(".00");
		String str = df.format(value);
		
		System.out.println("$" + str);
	}
}

于此同时，我的BigDecimal的版本总是被报告Runtime Error。不知何故。

//import java.io.BufferedInputStream;
import java.math.BigDecimal;
import java.util.Scanner;
 
public class Main {
  
    public static void main(String[] args) {
        //Scanner in = new Scanner(new BufferedInputStream(System.in));
    	Scanner in = new Scanner(System.in);
        String str = null;
        BigDecimal total = new BigDecimal(0);
        for(int i=0; i<12; i++){
        	str = in.nextLine();
        	total = total.add(new BigDecimal(str));
        }
        in.close();
       BigDecimal average = total.divide(new BigDecimal(12));
       System.out.println("$" + average.toString()); 
    }
}

POJ 1004 Financial Management

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原文地址：http://my.oschina.net/u/553266/blog/467604