Intro To Programming Quiz 1

Front 1

The name of a variable or constant

Back 1

Identifier

Front 2

A word for "joining together"

Back 2

concatenate

Front 3

A task

Back 3

method

Front 4

An object

Back 4

class

Front 5

A non­executable statement in a program (used for documentation only)

Back 5

comment

Front 6

A program must contain this or nothing will happen when it executes (runs)

Back 6

main method

Front 7

The assignment operator

Back 7

=

Front 8

A word or phrase contained in double quotations is called this

Back 8

string literal

Front 9

3 types of errors

Back 9

1. Syntax
2. Runtime
3. Logic

Front 10

List the 5 mathematical operators

Back 10

+,-,*,/,%

Front 11

What two things do you have to tell the compiler about all variables?

Back 11

the identifier and data type

Front 12

what are the 5 data types

Back 12

int, char, boolean, double, String

Front 13

All java statements are terminated with a _________________.

Back 13

;

Front 14

An open ______________ must have a closing ____________.

Back 14

(,),",",{,}

Front 15

____________ is the newline character.

Back 15

\n

Front 16

____________ is the tab character.

Back 16

\t

Front 17

__________ is used for a single line comment.

Back 17

//

Front 18

What key word turns a variable into a constant?

Back 18

final

Front 19

Every program you write automatically imports the _________ package

Back 19

java.lang

Front 20

You need to write an ______ __________ in your program when you want to use classes from packages other than java.lang

Back 20

Import Statement

Front 21

What class do you need to use for keyboard input

Back 21

Scanner class

Front 22

What is the import statement for keyboard input

Back 22

import java.util.Scanner;

Front 23

Allow you to access the methods of a particular class

Back 23

Object Variable

Front 24

How do you create an object variable in the scanner class?

Back 24

Scanner scan = new Scanner(System.in);

Front 25

What are the 5 methods of the scanner class?

Back 25

Methods of the Scanner Class: 1. nextInt() ­ used to read in integers
2. nextDouble() ­ used to read in decimal values
3. nextBoolean() ­ used to read in a boolean value (true or false) 4. next() ­ used to read in a single word or letter (String)
5. nextLine() ­ used to read in a word or phrase (String)