我正在尝试打印一个包含 5 行和 5 列的二维数组,但当我打印它时,我得到一行"[[0
, 0, 0, 0, 0], [0, 0, 0, 0, 0], [0, 0, 0, 0, 0], [0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0]]" 如何打印它以获得 5x5 网格?import java.util.Arrays;
public class spil {
public static void main(String[] args) {
int[][] grid=new int [5][5];
System.out.println(Arrays.deepToString(grid));
}
public static void print(int[][] grid) {
for (int i = 0; i < grid.length; i++) {
for (int j = 0; j < grid[i].length; j++) {
System.out.print(grid[i][j]+ " ");
}
System.out.println();
}
}
}
检查这个;
import java.util.Arrays;
public class spil {
public static void main(String[] args) {
int[][] grid=new int [5][5];
print(grid);// you never called your function
// System.out.println(Arrays.deepToString(grid));-----> This function was making all printing
}
public static void print(int[][] grid) {
for (int i = 0; i < grid.length; i++) {
for (int j = 0; j < grid[i].length; j++) {
System.out.print(grid[i][j]+ " ");
}
System.out.println();
}
}
}
您在第 7 行中调用Arrays::deepToString
,而不是自定义print
mehthod。
请改用print(grid);
来调用方法。
你可以调用你的打印方法:
public class Spil {
public static void main(String[] args) {
int[][] grid = new int[5][5];
print(grid);
}
public static void print(int[][] grid) {
for (int i = 0; i < grid.length; i++) {
for (int j = 0; j < grid[i].length; j++) {
System.out.print(grid[i][j] + " ");
}
System.out.println();
}
}
}
输出将是这样的:
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0