Which of the following are valid declarations<br /> <br /> 1. void method(int... x){};<br /> 2. void method(int.. x){}; <br /> 3. void method(int.. .x){};<br /> 4. void method(int ...x){};<br /> 5. void method(int... x){};<br /> 6. void method(int ... x){}; <br /> 7. void method(int x, int... y){};<br /> 8. void method(int... x, int y){};<br /> 9. void method(int... x,int... y){};<br />
Javasearch.buggybread.com
Share

Search Interview Questions


 3356 questions in repository.
 There are more than 200 unanswered questions.
Click here and help us by providing the answer.
 Have a video suggestion.
Click Correct / Improve and please let us know.
Label / Company      Label / Company / Text

   



Java - Interview Questions and Answers

 Q1. Which of the following are valid declarations

1. void method(int... x){};
2. void method(int.. x){};
3. void method(int.. .x){};
4. void method(int ...x){};
5. void method(int... x){};
6. void method(int ... x){};
7. void method(int x, int... y){};
8. void method(int... x, int y){};
9. void method(int... x,int... y){};
Core Java2017-05-22 21:22:57

Ans. 1st is a valid and standard declaration.

2nd results in compilation error as only 2 dots are there.

3rd results in compilation error as three dots are not consecutive and broken.

4 through 6 may not be standard and ideal way of declarations but they are valid and will compile and work fine.

7 is valid declaration.

8 and 9 will result in compilation error as var args can only be provided to last argument.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     var args  methods  functions   method declaration  scjp  ocjp


Related Questions

 What is the difference between these two method declarations ?

private static void method(String[] arg)

and

private static void method(String... arg)
  Which of the following is not valid var args declaration ?
 Can we overload method as following ?

void method(int... x){};
void method(int[] x){};
  Which of the following is false about var args ?
 What are var args ?

or

What is the use of var args ?
 Why following method declarations are not valid ?

void method(int... x, int y){};
void method(int... x,int... y){};
 Which method will get called if we call it as method(1)

void method(int x ){};
void method(int... x){};
 Do you see any problem with this code

public class BuggyBread {

   public static void main(String[] args) {
      method("Hello","World");
   }

   private static void method(String... args){
      for(String arg:args){
         System.out.println(arg);
      }
   }
}
 Do you see any problem with this code

public class BuggyBread {

   public static void main(String[] args) {
      method();
   }

   private static void method(String... args){
      for(String arg:args){
         System.out.println(arg);
      }
   }
}




Subscribe to Java News and Posts. Get latest updates and posts on Java from Buggybread.com
Enter your email address:
Delivered by FeedBurner



comments powered by Disqus
 

Help us and Others Improve. Please let us know the questions asked in any of your previous interview.

Any input from you will be highly appreciated and It will unlock the application for 10 more requests.

Company Name:
Questions Asked:
         

X Close this