我必须在2维数组上添加2008年选举的每个州的选票,但是当我运行代码时,它仅对第一行求和,然后将自身与前面的总和相加51次,如下所示:
州奥巴马麦凯恩其他州总计
阿拉巴马州813479 1266546 19794 2099819 2426016 72985等...
阿拉斯加123594 193841 8762 2099819 2426016 72985等...
但是我只需要在每行一次上添加每个州的总票数。
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();
}
}
最佳答案
但是当我运行代码时,它仅对第一行求和,然后将自身与前面的总和相加51次,如下所示:
查看您的代码:
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);
}
查看将
sum
设置为0的位置。现在考虑将其设置为0的位置...