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*Based on answer choices A-E, what is the code's output?
9. Given the following code, the output is __.
class Apple
{
int i;
Apple(int n) { i = n; }
}
class Sample
{
public static void main(String args[])
{
Apple a1 = new Apple(2);
System.out.println(a1.i);
a1.i++;
}
}
A. 5
B. 4
C. 3
D. 2
E. 1
*Based on answer choices A-E, what is the code's output?
8. Given the following code, the output is __.
class Apple
{
int i;
Apple() { i = 3; }
}
class Sample
{
public static void main(String args[])
{
Apple a1 = new Apple();
a1.i++;
System.out.println(a1.i);
}
}
A. 5
B. 4
C. 3
D. 2
E. 1
*Based on answer choices A-E, what is the code's output?
7. Given the following code, the output is __.
class Apple { public int i=0; }
class Fruits
{
public static void main(String args[])
{
Apple a1 = new Apple();
System.out.println(a1.i);
a1.i++;
}
}
A. 1
B. compiler error
C. runtime error
D. 2
E. 0
*Based on answer choices A-E, what is the code's output?
6. Given the following code, the output is __.
class Apple { static int i; }
class Fruits
{
public static void main(String args[])
{
Apple.i = 2;
Apple a1 = new Apple();
a1.i++;
System.out.println(a1.i);
}
}
A. 5
B. 4
C. 2
D. 3
E. 0
*Based on answer choices A-E, what is the correct option?
5. Which is an acceptable declaration of a Java nested class named "Outer"?
A. public class Outer { class Inner { } }
B. public class Outer { public class Inner { } }
C. public class Outer { static class Inner { } }
D. public class Outer { private class Inner { } }
E. All of the options
*Based on answer choices A-E, what is the correct option?
4. Given the following code, which is the correct way to create an object using the
parameterized constructor?
class Elmo
{
int age;
double length;
char model;
Elmo(int a, double l, char m) { age = a; length = l; model = m; }
}
A. Elmo e1 = new Elmo('Y', 5.6, 7);
B. Elmo e1 = new Elmo(5.6, 'Y', 7);
C. Elmo e1 = new Elmo(7, 'Y', 5.6);
D. Elmo e1 = new Elmo(5.6, 7, 'Y');
E. Elmo e1 = new Elmo(7, 5.6, 'Y');
*Based on answer choices A-E, what is the code's output?
3. Given the following code, which is an "instance variable" of the "Fruits" class?
class Fruits
{
public weight;
Fruits(double w) { weight = w; int height = 10}
public setHeight() { int h = 15; }
}
A. weight
B. height
C. w
D. h
E. All of the options
*Based on answer choices A-E, what is the correct option?
2. Assuming there exists a Java class named "Fruits", which can create an instance named "f1"
of the "Fruits" class that calls the default constructor for initialization?
A. Fruits(f1) = new Fruits();
B. Fruits f1 = new();
C. Fruits f1 = new Fruits();
D. Fruits *f1 = new Fruits();
E. Fruits *f1 = new Fruits;
*Based on answer choices A-E, what option is correct?
1. Which is an acceptable declaration of a Java class named "JavaCourse"?
A. static class JavaCourse { }
B. public class JavaCourse { }
C. private class JavaCourse { }
D. protected class JavaCourse { }
E. All of the options
Write a Java code that will create a supportive class named, Conversion, which contains
three methods as specified below.
1) Method Name: Gallon2Liter(), Type: value-returning, Parameter: 1 parameter named g of double type, Operation: Return the result of g×3.78541178
2) Method Name: Inc2Cm(), Type: value-returning, Parameter: 1 parameter named i of doubletype, Operation: Return the result of i×2.54
3) Method Name: Pound2Kg(), Type: value-returning, Parameter: 1 parameter named p of double type, Operation: Return the result of p×0.45359237
In the “main” class, create an instance named “c1” of the “Conversion” class.
Use the “c1” instance to access all the three methods, “Gallon2Liter()”, “Inc2Cm()”, and “Pound2Kg()”, to convert the following values.
• 16.75 gallons
• 37.98 inches
• 140.27 pounds
#339914 on Dec 2023