阿摩線上測驗 登入

申論題資訊

試卷:104年 - SCJP 201-244#99410
科目:OJCP(SCJP)
年份:104年
排序:0

申論題內容

201. Given:
1. import java.util.*; 
2. class A{} 
3. class B extends A{}
 4. public class Test{ 
5. public static void main(Strang[] args){ 
6. List<A> listA = new LinkedList<A>(); 
7. List<B> listB = new LinkedList<B>(); 
8. List<Obect> listO = new LinkedList<Obect>(); 
9. //insert code here 
10. } 
11. public static void m1(List<? extends A> list){} 
12. public static void m2(List<A> list){}
 Place a result onto each method call to indicate what would happen if the method call were inserted at line 9. Note: Results can be used more than once. 60d0071a8cae8.jpg