多选题 Given this code in a method:
5. boolean[] ba = {true, false};
6. short[] [] gr = {{1,2}, {3,4}};
7. int i = 0;
8. for( ; i ＜ i0; ) i++;
9. for(short s: gr) ;
10. for(int j = 0, k = 10; k ＞ j; ++j, k--);
11. for(int j = 0; j ＜ 3; System.out.println(j++))
12. for(Boolean b: ba);
What is the result? (Choose all that apply.)