Core Java - Interview Questions and Answers for 'Argument' | Search Interview Question

Core Java - Interview Questions and Answers for 'Argument' - 3 question(s) found - Order By Rating

Q1. Is this a valid initialization ? Explain.

Collection<Collection> collection = new LinkedList<LinkedList>();

Ans. No. It will result in a type mismatch error.

Collection<Collection> collection = new LinkedList<Collection>();

is a valid initialization as collection being reference of "Collection" class can hold object of derived Class "LinkedList" due to runtime Polymorphism. Runtime polymorphism is not applicable to type arguments.

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

_{Like Discuss Correct / Improve generics type argument}

Related Questions

Q2. Why do we pass an array of strings to main method ?

Core Java

Ans. Array of strings in the main method are the list of arguments or parameters which are sent to the application / program.

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

_{Like Discuss Correct / Improve main method main method string array argument}

Related Questions

Why do we write public static void main ? Can we use some other syntax too for main ?

Which of the following is false about main method ?

a. It should be declared public and static
b. it should have only 1 argument of type String array
c. We can override main method
d. We can overload main method

Can we have multiple main methods in a single class ?

Can we overload main method in Java ?

What will happen if static modifier is removed from the signature of the main method?

How can we execute a Java class independently if it doesn't have a static main method ?

Can we declare a main method as abstract ?

Do all java classes need a main method?

Can we declare the main method as private ?

Why main method is declared static ?

Q3. Difference between parameters and arguments ?

Core Java

Ans. Parameters are the variables that the method is expected to receive along with the method call. Arguments are the values which are passed on while calling the methods.

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

_{Like Discuss Correct / Improve parameter argument method function parameter vs argument basic}

Related Questions

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){};

What is the difference between these two method declarations ?

private static void method(String[] arg)

and

private static void method(String... arg)

Can we overload method as following ?

void method(int... x){};
void method(int[] x){};

Which function is used to convert a JSON text into an object ?

Which kind of memory is used for storing object member variables and function local variables ?

How are values passed in Java ? By value or reference ?

What are the advantages of using methods in Java ?

Do you prefer using var args ?

What is the difference between pop and peek function of stack ?

Search Interview Questions

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