Java OOP

Front

Composition is a

Back

has-a relationship

Front

What is not a Java primitive data type? Options: float, byte, Boolean, char

Back

Boolean

Front

Which is not a valid way to define an array? Options: int[3] i = new int[]; int[ ] i = {1,2,3}; int[ ] i = new int[ ]{1, 2, 3}; int[ ] i = new int[3];

Back

int[3] i = new int[];

Front

It keeps the data and the code safe from external interference.

Back

Encapsulation

Front

Which data type is not supported by ArrayList? Integer, String, double, Boolean

Back

double

Front

What is an instance of a class?

Back

Object

Front

Autoboxing converts primitive to corresponding object wrapper class

Back

true

Front

What is the default value of a primitive int data type?

Back

0

Front

Consider the given code. What would be the display on the screen? Options: Class A, Class B, Class C, Compile error

Back

Class C