我必须在二维数组中添加2008年选举的每个状态的投票,但是当我运行代码时,它仅对第一行求和,然后继续将自己添加到前一个总和51次,如右边这样:
但我需要每行只添加一次总票数。
public static void main(String[] args) throws IOException
{
// TODO code application logic here
File election = new File("voting_2008.txt");
Scanner sc = new Scanner(election);
String[] states = new String[51];
int[][]votes = new int[51][4];
int[] Totalbystate = new int[votes.length];
for (int s=0; s < 51; s++)
{
states[s] = sc.nextLine();
}
for(int c=0; c < 3; c++)
{
for(int s=0; s < 51; s++)
{
votes[s][c] = sc.nextInt();
}
}
Formatter fmt = new Formatter();
fmt.format("%20s%12s%12s%12s%21s", "State", "Obama", "McCain", "Other", "Total by state");
System.out.println(fmt);
for (int s=0; s < 51; s++)
{
fmt = new Formatter();
fmt.format("%20s", states[s]);
System.out.print(fmt);
for(int c=0; c < 3; c++)
{
fmt = new Formatter();
fmt.format("%12d", votes[s][c]);
System.out.print(fmt);
}
int sum =0;
for(int row=0; row < votes.length; row++)
{
for (int col=0; col < votes[row].length; col++)
{
sum = sum + votes[row][col];
}
fmt = new Formatter();
fmt.format("%21d", sum);
System.out.print(fmt);
}
System.out.println();
}
}
答案 0 :(得分:1)
但是当我运行代码时,它只对第一行求和,然后继续将自己添加到前一次总和51次,如下所示:
看看你的代码:
int sum =0;
for(int row=0; row < votes.length; row++)
{
for (int col=0; col < votes[row].length; col++)
{
sum = sum + votes[row][col];
}
fmt = new Formatter();
fmt.format("%21d", sum);
System.out.print(fmt);
}
查看您将sum
设置为0的位置。现在想想应该将其设置为0 ...