public class MyClass {
   public static void main(String[] args) {
     int[][] myNumbers = { {1, 2, 3, 4}, {5, 6, 7} };
     for (int i = 0; i < myNumbers.length; ++i) {
        for(int j = 0; j < myNumbers[i].length; ++j) {
           System.out.println(myNumbers[i][j]);
        }
     }
   }
}