JAVA二维数组循环打印格式化[0][0]、[1][1]等

Question

我无法让我的二维数组并排打印值，采用第一个数组行值索引 0 并将其与第二行数组索引 0 匹配，然后在垂直列表中继续。就目前而言，我的代码编译并在两行上以水平方式打印整个数组。基本上，我希望最终结果的格式如下:

Admin | Password1
Vale.Vicky | BruceIsTheBat!
Lane.Lois | FlyMeToTheMoon1234
Kent.Clark | PhoneBoothsSmell
Wayne.Bruce | ThisBat4You99

……等等。

public class PasswordArrays {                   // start of class

public static void main(String[] args) {        // Start of main
    // TODO Auto-generated method stub

    String [][] idArray = {
            {"Admin", "Vale.Vicky", "Lane.Lois", "Kent.Clark", "Wayne.Bruce", "Parker.Peter", "Rogers.Steve", "Luther.Lex", "Osborn.Harry","Prince.Diana", "Linda Zoel"},
            {"Password1", "BruceIsTheBat!", "FlyMeToTheMoon1234", "PhoneBoothsSmell","ThisBat4You99", "webSlinger","ShieldEnthusiast", "HairClub4Men", "GoblinGoober", "WonderWonderWho?", "WhoIsLindaZoel?"}
            };

    printArray(idArray);

} //End of main
public static void printArray(String a [][]) {      //start of printArray method

    for (int row=0; row < a.length ; row++) {       // start of row for loop    

        for (int column = 0; column < a [row].length; column++) {       //start of column for loop

            System.out.print(a[row][column] + " ");

        } // End of column for loop

        System.out.println();

    } // End of row for loop


} // End of printArray method

} //End of class

我知道某个地方已经有了这个问题的答案，但我没能找到它。非常感谢任何帮助。

Answer 1

二维数组可以通过两种方式迭代:

1. 明智的行

2. 列明智

根据您的预期结果，您要做的是按列而不是按行迭代。这是一个解决方案:

public static void printArray(String a [][]) {

    for(int col=0; col < a[0].length; col++) {
        for (int row = 0; row < a.length; row++) {
            if (row!=a.length-1) {
                System.out.print(a[row][col] + "|");
            }
            else {
                System.out.print(a[row][col]);
            }
        }
        System.out.println();
    }
}

有用链接:Iterate through multi-dimensional array