Java Quiz 1

What is the command to compile a java program?

• java

• compile

• javac

• run

1. 1. ____ grade = 'A';

2. 2. ______ name = "Arko";

(a)  

Create a variable named maxSpeed and assign the value 120 to it.

(a)  

(a)   pass = true;

byte, short, int, long, float, double, boolean and char are called:

• numbers

• primitive

• non-primitive

• values

double myDouble = 9.78d;
int myInt = ( (a)   ) myDouble;

an int takes _ bytes whereas a double takes _ bytes of space.

(a)  

• Whcich of the following options are TRUE?

• 1. Primitive types are predefined in Java.

• 2. Non-primitive types are created by the programmer except for String.

• 3. Primitive types can be used to call methods.

• 4. A primitive type starts with a lowercase letter, while non-primitive types starts with an uppercase letter.

• 1, 2

• 3, 4

• All of the above

• 1, 2, 4

What will be the output of the following code snippet?

int a = 15;

double b = 5.0;

int result = a * b;

System.out.println("Result = " + result);

• Result = 75.0

• Result = 75

• Compilation Error

We can access a property or method of an Object using which operator?

• dot opeartor (Ex: myObj.value)

• arrow operator (Ex: myObj->value)

• None of the above

• We cannot access the properties