Interviewquestions Java Interview Questions 10

what problem we would have faced,if string class object had not been immutable.

Posted by sandeep on Wednesday, 01.2.08 @ 21:51pm | #44381

what is synchronized?

Posted by chandran on Tuesday, 02.20.07 @ 16:12pm | #8485

Question: What restrictions are placed on method overloading?
Answer: Two methods may not have the same name and argument list but different return types.

I think the answer is not correct. The answer should be
"Just by changing the return type alone a method cannot be overloaded. The number and type of argguments should also differ. For example,
public int add(int a, int b){
}
public void add(int a,int b){
}
is not overloading. The system will show error.
where as,
public int add(int a, int b){
}
public double add(double a,double b){
}
is overloading.

Posted by C.Srinivasan on Tuesday, 02.13.07 @ 14:19pm | #7733