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Non Primitive data types

What is the incorrect statement about non-primitive data types or user-defined data types.

A.	Non-primitive data types can be created using the primitive data types.
B.	Non-primitive data types can contain only primitive data types. They can not contain other non-primitive/user-defined data types in them.
C.	Non-primitive data types can contain both primitive data types and other non-primitive/user-defined data types.
D.	None of the above

Compiling Java Program521

If the following program is saved in file named "HelloWorld.java", what are the commands for compiling it and running it.

// HelloWorld.java
class Helloworld
{
    public static void main(String s[])
    {
        System.out.println("Hello World");
    }
}

A.	javac HelloWorld.java java HelloWorld
B.	javac HelloWorld.java java Helloworld
C.	javac HelloWorld.java java HelloWorld.java
D.	javac HelloWorld.java java Helloworld.java

Strongly Typed Language

What is Strongly Typed Language?

A.	Strongly typed language means the type of the variable is decided depending on its value
B.	Strongly typed language means once a variable is declared as certain type, then the type can not be changed and its value can not be modified.
C.	Strongly typed language means once a variable is declared as certain type, then the type can not be changed but its value can be changed to some other value of the same data type.
D.	None of the above

Primitive data types

What is the incorrect statement about primitive data types?

A.	Primitive data types can not be directly used in any program. We have to create a user-defined data type and then use it.
B.	Primitive data types can be used to create non-primitive or user-defined data types.
C.	Primitive data types are classified into four groups. They are Integers, Floating Points, Characters and Booleans
D.	Primitive data types are included by default as part of the Java Programming Language

Steps for modifying a program

What are the steps involved in modifying a program and running it?

A.	1. Run It
B.	1. Compile It 2. Run It
C.	1. Save the file 2. Compile It 3. Run It
D.	1. Save the file 2. Compile It 3. Send an email with the file as attachment 4. Run It