java多数组输入
我无法创建循环以向多阵列添加小时数。当我使用这个方法时,有一个错误。我怀疑for循环没有捕获输入
import javax.swing.JOptionPane;
public class Gain
{
// Defining array names.
String[] name = {"A", “B”, “C”, “D”, “E”, “F”, “G”, “H”, “I”, “L”};
int[][] hours = new int[10][3];
public final int Hours()
{
boolean canceled = false;
for (int index = 0; index < name.length; index++) {
JOptionPane.shoeMessageDialog(“Please enter " + name[index] + “’s hours”);
for (int x = 0; x <= hours.length; x++)
for (int y = 0; y <= hours[x].length; y++)
Integer value = promptForInt(artist[index] + “’s first hour: ”);
if (value != null) {
while (value < 0)
{
JOptionPane.showMessageDialog(null, "Please positive figures." + "\nPlease try again.");
value = promptForInt(name[index] + “’s first hour: ”);
}
pay[x][y] = value;
} else {
canceled = true;
break;
}
}
public static void main(String[] args) // Main program
{
for (int x = 0; x <= name.length; x++)
for (int y = 0; y <= hours.length; y++)
System.out.println(x, y);
}
# 1 楼答案
尝试在括号中添加如下内容:
虽然当后面只有一行代码时(如在
main
方法中),可以避免for循环中使用括号,但当有整个块时,需要使用括号,就像在Hours()
方法中一样。就我个人而言,我喜欢一直使用括号,因为它使代码更具可读性,但这只是我的想法。:)