PLEASE SOLVE FAST When you implement a method that is also defined in a supercla
ID: 3582456 • Letter: P
Question
PLEASE SOLVE FAST
When you implement a method that is also defined in a superclass, you __________ the original method.
Select one:
a. copy
b. call
c. overload
d. override
The fields in an interface are implicitly specified as,
Select one:
a. private
b. both static and final
c. static only
d. protected
Each class in java has at least one constructor even if you don't create one.
Select one:
a. false
b. true
Analyze the following code.
public class Test {
private int t;
public static void main(String[] args) {
int x;
System.out.println(t);
}
}
Select one:
a. t is non-static and it cannot be referenced in a static context in the main method.
b. The program compiles and runs fine.
c. The variable t is not initialized and therefore causes errors.
d. The variable x is not initialized and therefore causes errors.
An attribute that is shared by all objects of the class is coded using ________.
Select one:
a. a static variable
b. an instance variable
c. a static method
d. an instance method
A subclass can be abstract even if its ________ is concrete.
Select one:
a. abstraction
b. public method
c. Superclass
d. Constructor
Next
What modifier should you use on a variable so that it can only be referenced inside its defining class.
Select one:
a. public
b. protected
c. private
d. Use the default modifier
Explanation / Answer
>When you implement a method that is also defined in a superclass, you override the original method.
>The fields in an interface are implicitly specified as both static and final.
>Each class in java has at least one constructor even if you don't create one.
True
>public class Test {
private int t;
public static void main(String[] args) {
int x;
System.out.println(t);
}
}
t is non-static and it cannot be referenced in a static context in the main method.
>An attribute that is shared by all objects of the class is coded using a static variable.
>A subclass can be abstract even if its Superclass is concrete.
>private modifier should you use on a variable so that it can only
be referenced inside its defining class.
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