java - 2D 字符串数组转换为 2D Int 数组

Question

我想将二维字符串数组转换为整数二维数组。怎么做。我尝试了一些事情，但我现在无法集中注意力，我想今天完成它:D 提前致谢。所以...这是数组的所有值:

parts[] []: 

[0] "25"
[1] "3"
[2] "18"

[0] "20"
[1] "12"
[2] "18"

[0] "1"
[1] "1"
[2] "15"

//string.length = 3;

String[] [] parts = new String[string.length][];
int[] [] stringToInt = new int[string.length][];

for(int a=0; a<string.length;a++){
    for(int b=0; b<3;b++){
      stringToInt[a] = Integer.parseInt(parts[a] [b]);    <---Error
    }
}

Answer 1

初始化字符串数组，然后定义 2D int 数组时遇到一些问题。这可能就是您想要做的:

String parts[][] = { { "25", "3", "18" }, { "20", "12", "18" }, { "1", "1", "15" } };

int[][] stringToInt = new int[parts.length][parts[0].length];

for (int a = 0; a < parts.length; a++) {
    for (int b = 0; b < parts[0].length; b++) {
        stringToInt[a][b] = Integer.parseInt(parts[a][b]);
    }
}