배열출력

package test01;
import java.util.Arrays;
public class test04 {
      public static  int [][] copy(int [][] b) {
              int [][] c;
              c = new int[b.length][];
              for(int i=0; i<b.length; i++) c[i] = new int[b[i].length];
              for(int i=0; i<b.length; i++)
               for(int j=0; j<b[i].length; j++)
                c[i][j] = b[i][j];
              return c;
             }
      
      public static void main(String[] args) {
            // TODO Auto-generated method stub
            int[] c = {56,87,96,59,87,48,56,33,65,78};
            int[] d= c.clone();
            System.out.println(Arrays.toString(c));
            System.out.println(Arrays.toString(d));
            
            int [][] a = {{1,2,3},{4,5,6},{7,8,9}};
            int [][] b = copy(a);
            //copy() => clone()을 메소드로 만든경우
            
            System.out.println(Arrays.deepToString(a));
            System.out.println(Arrays.deepToString(b));
            
            //b[0][0]=100;
            for(int i=0; i<b.length; i++)
                  for(int j=0; j<b[i].length; j++)
                        System.out.printf("%d %d    ",a[i][j], b[i][j]);
      }
}