多选题 Given:
2. class Chilis {
3. Chilis(String c, int h) {color = c; hotness = h; }
4. String color;
5. private int hotness;
6. public boolean equals(Object o) {
7. Chilis c = (Chilis)o;
8. if(color.equals(c.color) && (hotness == c.hotness)) return true;
9. return false;
10. }
11. // insert code here
12. }
Which, inserted independently at line 11, fulfill the equals() and hashCode() contract for Chilis? (Choose all that apply.)

A、 public int hashCode() {return 7; }
B、 public int hashCode() {return hotness; }
C、 public int hashCode() {return color.length(); }
D、 public int hashCode() {return (int)(Math.random() * 200); }
E、 public int hashCode() {return (color.length() + hotness); }

【正确答案】 A、B、C、E

【答案解析】