java - java 二维数组

Question

无法理解我做错了什么:(我想用空格填充数组。但是收到错误线程“main”java.lang.Error中出现异常: Unresolved 编译问题: j 无法解析为变量

at Field.space(Field.java:11)
at Main.main(Main.java:6)

这是我的简单代码:

public class Main {

    public static void main (String[] args){
        Field field = new Field();
        field.space();
    }
}


public class Field {
    private static final int ArraySize = 3;
    private char spacesymbol = ' ';
    private char[][] array = new char [ArraySize][ArraySize];

    public void space() {
        for (int i=0; i<ArraySize; i++){
            for (int j=0; j<ArraySize; j++)
                array[i][j]= spacesymbol;
            System.out.println("[" + array[i][j] + "]");
        }

    }
}

Answer 1

您忘记了第二个 for 循环的大括号，请将其更改为:

for (int j=0; j<ArraySize; j++) {
    array[i][j]= spacesymbol;
    System.out.println("[" + array[i][j] + "]");
}