java - Java 打印多维数组

Question

我只想通过 for 循环打印我的空数组。

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 10

出了什么问题？

int NYEARS = 5;
int NRATES = 3;

double[][] balancee = new double[NYEARS][NRATES];
for (int i = 0; i < NYEARS; i++) {
    for (int j = 0; j < NRATES; j++) {
        System.out.print(balance[NYEARS][NRATES] + " ");
        System.out.println();
    }
}

Answer 1

您应该使用循环索引来访问数组元素，而不是数组维度:

for (int i = 0; i < NYEARS; i++) {
    for (int j = 0; j < NRATES; j++) {
        System.out.print(balance[i][j] + " ");
        System.out.println();
    }
}