M2

Question 1

defines a class, a
template for an object of derived type
HelloWorld

Answer 1

class HelloWorld –

Question 2

access specifier/modifier,

Answer 2

public –

Question 3

the main
method is declared private so that it is
accessible as part of the public interface of
the program.

Answer 3

false public

Question 4

state of the method

Answer 4

static –

Question 5

void – It returns void because the Java

interpreter X.

Answer 5

does not expect to receive or

process any output from the class

Question 6

The X class is a part of the core 
Java  language package of the Application 
Programming Interface (API)

Answer 6

System

Question 7

The X method
is one of dozens of methods in the System
class.

Answer 7

println

Question 8

JAVA LANGUAGE FUNDAMENTALS

Answer 8

ØIdentifiers
ØKeywords
ØComments
ØData types

Question 9

X are names that are given by the
programmer as name of variables, methods
or functions, classes etc.

Answer 9

Identifiers

Question 10

Java Comments are of three (3) types:

Answer 10

Java Comments are of three (3) types:
1. A single-line comment starting with //
2. A multi-line comment enclosed within /* */
3. A documentation or javadoc comment is
enclosed between /** and */

Question 11

byte, short, int, long, float, double, boolean, char are

Answer 11

primitive data types

Question 12

variable declaration syntax

Answer 12

; [= value;]

Question 13

assigning a value to a variable syntax

Answer 13

= value;

Question 14

X are used in
converting one data type (such as a
String) into another data type (such as
int or double).

Answer 14

Java Wrapper Classes

Question 15

used in
wrapping a primitive value into an
object

Answer 15

Java Wrapper Classes

Question 16

here:

System.out.print();

X is a public static field: it accepts output data

Answer 16

out

Question 17

here:

System.out.print();

X is a class

Answer 17

System

Question 18

It prints string inside the quotes

Answer 18

print() -

Question 19

It prints string inside the quotes similar 
like print() method. Then the cursor moves to the beginning 
of the next line

Answer 19

println() -

Question 20

It provides string formatting (similar to printf in

C/C++ programming).

Answer 20

printf() -

Question 21

used to restrict the output depending on the conversion. It specifies the number of digits of precision when outputting floating-point values or the length of a subtracting to extract from a string. Numbers are rounded to the specified precision.

Answer 21

printf() -

Question 22

The X class is used to get user input, and it is found in 
the java.util package.

Answer 22

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