[ 2차원 배열 ]
public class Test02_Array {
public static void main(String[] args) {
int[][] a={
{1,2,3},
{4,5,6},
{7,8,9},
{10,11,12}
};
for(int i=0;i<4;i++) {
for(int j=0;j<3;j++) {
System.out.print(a[i][j]+" ");
}
System.out.println();
}
}
}