QUESTION 6

QUESTION 6 
Given: 
 
1. 
2. public class Hi { 
3.     void m1() { } 
4.     protected void m2() { } 
5. } 
6. class Lois extends Hi { 
7. //    insert code here 
8. } 
 
Which four code fragments, inserted independently at line 7, will compile? (Choose four.) 
 
A. public void m1() { } 
B. protected void m1() { } 
C. private void m1() { } 
D. void m2() { } 
E. public void m2() { } 
F. protected void m2() { } 
G. private void m2() { } 

Solution : ABEF

---

plus imformation 

C. Main.java:7: m1() in Lois cannot override m1() in Hi;

   attempting to assign weaker access privileges;

   was package private void m1() { }

                               ^ 1 error 

 

D. Main.java:7: m2() in Lois cannot override m2() in Hi;

   attempting to assign weaker access privileges;

   was protected void m2() { }

                       ^ 1 error

G. Main.java:7: m2() in Lois cannot override m2() in Hi;

   attempting to assign weaker access privileges;

   was protected private void m2() { }

                              ^ 1 error