public class TwoDimArray{
public static void main (String[] args){
int[][] arr={
{1,2,3},
{4,5,6}
};
for (int i=0 ; i < arr.length; i++){
for (int j=0 ; j < arr.length; j++)
System.out.print(arr[i][j] + " ");
System.out.println();
}
}
}书上是 1 2 3
4 5 6
我的是 1 2
4 5我知道有问题总问是不对的.但是弄了一早上了啊
public static void main (String[] args){
int[][] arr={
{1,2,3},
{4,5,6}
};
for (int i=0 ; i < arr.length; i++){
for (int j=0 ; j < arr.length; j++)
System.out.print(arr[i][j] + " ");
System.out.println();
}
}
}书上是 1 2 3
4 5 6
我的是 1 2
4 5我知道有问题总问是不对的.但是弄了一早上了啊
public static void main (String[] args){
int[][] arr={
{1,2,3},
{4,5,6}
};
for (int i=0 ; i <arr.length; i++){
for (int j=0 ; j <=arr.length; j++)
System.out.print(arr[i][j] + " ");
System.out.println();
}
}
} 这样就可以了!加个"="
public static void main (String[] args){
int[][] arr={
{1,2,3},
{4,5,6}
};
for (int i = 0; i < arr.length; i++){
for (int j = 0; j < arr[i].length; j++) {
System.out.print(arr[i][j] + " ");
}
System.out.println();
}
}