java - 如何检查我有多少绘制结果并显示它?
问题描述
下面我们有 2 个 int 数组存储主客场的足球结果...我需要显示统计数据我有多少平局结果。有人可以帮我一把吗?我想不通。请假设这是我的第一个曾经编程,如果您有任何解决方案,请您评论代码..我需要向我的导师解释我是如何做到的。谢谢
String[] HomeTeam = new String[10];
String[] AwayTeam = new String[10];
int[] HomeScore = new int[10];
int[] AwayScore = new int[10];
int index = 0;
int sum = 0;
int sum1 = 0;
do
{
System.out.print("Enter Home Team Name: ");
HomeTeam[index] = kbd.nextLine();
System.out.print("Enter Away Team Name: ");
AwayTeam[index] = kbd.nextLine();
System.out.print("Enter Home Team Score:");
HomeScore[index] = kbd.nextInt();
System.out.print("Enter Away Team Score: ");
AwayScore[index] = kbd.nextInt();
kbd.nextLine();
} while(index < 10);
index = 0;
System.out.println();
do
{
System.out.println(HomeTeam[index] + " [" + HomeScore[index] + "]" + " | " + AwayTeam[index] + " [" + AwayScore[index] + "] ");
index = index + 1;
} while(index < 10);
kbd.close();
for(index = 0; index < 10; index++)
sum += HomeScore[index];
for(index = 0; index < 10; index++)
sum1 += AwayScore[index];
System.out.println();
System.out.println("Totals");
System.out.println("-------------------------------");
System.out.println("Total number of matches played: " + index);
System.out.println("Total of all home scores: " + sum);
System.out.println("Total of all away scores: " + sum1);
System.out.println("Total number of draws: ");
System.out.println("The highest home score: ");
System.out.println("The highest away score: ");
}
}
解决方案
为了编写代码,您必须清楚您正在实施的解决方案。一个好的初学者练习是写一个程序执行的流程图(键盘前的纸)。
我做了一个供您将来参考:
因此,考虑到该算法,我实现了一个可能的解决方案(使用硬编码数据)。
主类:
public class MainE {
public static void main(String[] args) {
String[] homeTeam = { "q", "w", "e", "r", "t", "y", "u", "i", "o", "p"};
String[] awayTeam = {"p", "o", "i", "u", "y", "t", "r", "e", "w", "q"};
int[] homeScore = {5,1,3,5,6,1,10,4,3,2};
int[] awayScore = {4,3,2,1,3,5,42,1,3,2};
int sumHome = 0;
int sumAway = 0;
int drawCount = 0;
int highestHomeScore = homeScore[0];
int highestAwayScore = awayScore[0];
System.out.println();
for (int index = 0; index < 10; index++) {
System.out.println(homeTeam[index] + " [" + homeScore[index] + "]"
+ " | " + awayTeam[index] + " [" + awayScore[index] + "] ");
sumHome += homeScore[index];
sumAway += awayScore[index];
if (homeScore[index] > highestHomeScore) highestHomeScore = homeScore[index];
if (awayScore[index] > highestAwayScore) highestAwayScore = awayScore[index];
if(homeScore[index] == awayScore[index]) drawCount++;
}
System.out.println();
System.out.println("Totals");
System.out.println("-------------------------------");
System.out.println("Total number of matches played: " + homeTeam.length);
System.out.println("Total of all home scores: " + sumHome);
System.out.println("Total of all away scores: " + sumAway);
System.out.println("Total number of draws: " + drawCount);
System.out.println("The highest home score: " + highestHomeScore);
System.out.println("The highest away score: " + highestAwayScore);
}
}
输出:
q [5] | p [4]
w [1] | o [3]
e [3] | i [2]
r [5] | u [1]
t [6] | y [3]
y [1] | t [5]
u [10] | r [42]
i [4] | e [1]
o [3] | w [3]
p [2] | q [2]
Totals
-------------------------------
Total number of matches played: 10
Total of all home scores: 40
Total of all away scores: 66
Total number of draws: 2
The highest home score: 10
The highest away score: 42
编辑:
如果你想避免空值,你必须询问每次迭代if(homeTeam[index] != null )
,还要手动计算匹配(它们不再匹配数组长度)
处理空
public class MainE {
public static void main(String[] args) {
String[] homeTeam = { "q", "w", "e", null, "t", "y", "u", "i", "o", "p"};
String[] awayTeam = {"p", "o", "i", null, "y", "t", "r", "e", "w", "q"};
int[] homeScore = {5,1,3,0,6,1,10,4,3,2};
int[] awayScore = {4,3,2,0,3,5,42,1,3,2};
int sumHome = 0;
int sumAway = 0;
int drawCount = 0;
int matches = 0;
int highestHomeScore = homeScore[0];
int highestAwayScore = awayScore[0];
System.out.println();
for (int index = 0; index < 10; index++) {
if(homeTeam[index] != null ){
System.out.println(homeTeam[index] + " [" + homeScore[index] + "]"
+ " | " + awayTeam[index] + " [" + awayScore[index] + "] ");
sumHome += homeScore[index];
sumAway += awayScore[index];
if (homeScore[index] > highestHomeScore) highestHomeScore = homeScore[index];
if (awayScore[index] > highestAwayScore) highestAwayScore = awayScore[index];
if(homeScore[index] == awayScore[index]) drawCount++;
matches++;
}
}
System.out.println();
System.out.println("Totals");
System.out.println("-------------------------------");
System.out.println("Total number of matches played: " + matches);
System.out.println("Total of all home scores: " + sumHome);
System.out.println("Total of all away scores: " + sumAway);
System.out.println("Total number of draws: " + drawCount);
System.out.println("The highest home score: " + highestHomeScore);
System.out.println("The highest away score: " + highestAwayScore);
}
}
输出:
q [5] | p [4]
w [1] | o [3]
e [3] | i [2]
t [6] | y [3]
y [1] | t [5]
u [10] | r [42]
i [4] | e [1]
o [3] | w [3]
p [2] | q [2]
Totals
-------------------------------
Total number of matches played: 9
Total of all home scores: 35
Total of all away scores: 65
Total number of draws: 2
The highest home score: 10
The highest away score: 42
注意:更好的选择是在询问输入时跳过空值。
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