PLEASE SOLVE FAST The method _____ overrides the following method. protected dou

Question

PLEASE SOLVE FAST

The method _____ overrides the following method.
protected double xMethod(int x)
Select one:
a. protected int xMethod(double x)
b. private double xMethod(int x)
c. public double xMethod(double x)
d. public double xMethod(int x)

The ability to create a variable, object, function, operator, or object
that has more than one form; also defined as the ability for values of different data
types to be handled using a uniform interface. This is know as ____________.
Select one:
a. Override
b. Polymorphism
c. Inheritance
d. Abstraction

How many values can the following array hold?
double[] myList = new double[10];
Select one:
a. 10
b. 0
c. null
d. 9

A queue works in which of the following ways?
Select one:
a. First in - First out
b. Last in - First out
c. First in - Last out
d. Last in - Second out

What is the output of running class C?
class A {
public A() {
System.out.println(
"The default constructor of A is invoked");
}
}
class B extends A {
public B() {
System.out.println(
"The default constructor of B is invoked");
}
}
public class C {
public static void main(String[] args) {
B b = new B();
}
}
Select one:
a. "The default constructor of B is invoked"
b. none
c. "The default constructor of A is invoked" followed by "The default constructor of B is invoked"
d. "The default constructor of A is invoked"

What would be the result of attempting to compile and run the following code?
public class Test {
static int x;
public static void main(String[] args){
System.out.println("Value is " + x);
}
}
Select one:
a. A runtime error occurs, because x is not initialized.
b. A "possible reference before assignment" compiler error occurs.
c. The output "Value is 0" is printed.
d. An "illegal array declaration syntax" compiler error occurs.

Which stetment is incorrect?
Select one:
a. An object with no references is known as garbage.
b. Garbage collection is not done automatically by JVM.
c. If you know that an object is no longer needed, you can explicitly assign null to a reference variable for the object

To prevent any method from overriding, we declare the method as,
Select one:
a. static
b. const
c. final
d. abstract

An abstract method cannot be contained in a nonabstract class.
Select one:
a. False
b. True

Explanation / Answer

The method _____ overrides the following method.
protected double xMethod(int x)
Select one: d
a. protected int xMethod(double x)
b. private double xMethod(int x)
c. public double xMethod(double x)
d. public double xMethod(int x)
The ability to create a variable, object, function, operator, or object
that has more than one form; also defined as the ability for values of different data
types to be handled using a uniform interface. This is know as ____________.
Select one: b
a. Override
b. Polymorphism
c. Inheritance
d. Abstraction

How many values can the following array hold?
double[] myList = new double[10];
Select one: a
a. 10
b. 0
c. null
d. 9
A queue works in which of the following ways?
Select one: a
a. First in - First out
b. Last in - First out
c. First in - Last out
d. Last in - Second out
What is the output of running class C?
class A {
public A() {
System.out.println(
"The default constructor of A is invoked");
}
}
class B extends A {
public B() {
System.out.println(
"The default constructor of B is invoked");
}
}
public class C {
public static void main(String[] args) {
B b = new B();
}
}
Select one:c
a. "The default constructor of B is invoked"
b. none
c. "The default constructor of A is invoked" followed by "The default constructor of B is invoked"
d. "The default constructor of A is invoked"
What would be the result of attempting to compile and run the following code?
public class Test {
static int x;
public static void main(String[] args){
System.out.println("Value is " + x);
}
}
Select one: c
a. A runtime error occurs, because x is not initialized.
b. A "possible reference before assignment" compiler error occurs.
c. The output "Value is 0" is printed.
d. An "illegal array declaration syntax" compiler error occurs.
Which stetment is incorrect?
Select one: b
a. An object with no references is known as garbage.
b. Garbage collection is not done automatically by JVM.
c. If you know that an object is no longer needed, you can explicitly assign null to a reference variable for the object
To prevent any method from overriding, we declare the method as,
Select one: c
a. static
b. const
c. final
d. abstract
An abstract method cannot be contained in a nonabstract class.
Select one: b
a. False
b. True

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