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.)

单项选择题Given:2. interface Machine { }3. interface Engine { }4. abstract interface Tractor extends Machine, Engine {5. void pullStuff();6. }7. class Deere implements Tractor {8. public void pullStuff() {System.out.print( pulling ); }9. }10. class LT255 implements Tractor extends Deere {11. public void pullStuff() {System.out.print( pulling harder ); }12. }13. public class LTI55 extends Deere implements Tractor, Engine { }What is the result (Choose all that apply.)

单项选择题Given the proper imports, and given:24. Date d1 = new Date();25. Date d2 = d1;26. System.out.println(d1);27. d2.setTime(d1.getTime() + (7 * 24 * 60 * 60));28. System.out.println(d2);Which are true (Choose all that apply.)