IT102 Java Package and Math Class

Question 1

______are important for organizing classes and interfaces in a clear way. They help manage code, prevent name conflicts, and control access to different parts of the code.

Answer 1

Java packages

Question 2

Java packages are important for organizing _____ and ____ in a clear way. They help manage code, prevent name conflicts, and control access to different parts of the code.

Answer 2

classes and interfaces

Question 3

A ____ in java is like a folder that groups related classes and interfaces together. It helps keep things organized, allows you to reuse code, and avoids problems with names being the same.

Answer 3

package

Question 4

Types of packages in Java

Answer 4

Java API packages or built-in packages
User-defined packages

Question 5

_____ is an application programming interface that functions within software built using the Java software programming language.

Answer 5

Java API

Question 6

Java API is an__________ that functions within software built using the Java software programming language.

Answer 6

application programming interface

Question 7

Some of the the commonly used built-in packages are:

Answer 7

java.util
java.applet
java.awt
java.net

Question 8

contains utility classes which implement data structures like linked list, dictionary and support ; Date/ Time operations

Answer 8

java.util

Question 9

contains classes for creating applets

Answer 9

java.applet

Question 10

contain classes for implementing the components for graphical user interfaces (like button, menus etc.

Answer 10

java.awt

Question 11

contain classes for supporting networking operations

Answer 11

java.net

Question 12

package Naming convention
java.math.lang

Answer 12

java- is a top level package
lang-is a sub package
math- is a class which is presdent in the package lang.

Question 13

OOP

Answer 13

OBJECT-ORIENTED PROGRAMMING

Question 14

Classes are like ____ that we can use when writing programs.

Answer 14

ready made templates

Question 15

Each class has its own methods, which are the _____ you can perform using that class.

Answer 15

actions

Question 16

Each____ has its own methods, which are the actions you can perform using that class.

Answer 16

class

Question 17

Each class has its own _____ , which are the actions you can perform using that class.

Answer 17

methods

Question 18

The _____ package is one of the most important packages in java.

Answer 18

java.lang

Question 19

The java.lang package is on of the most important packages in java. It includes _____ that are essential for writing most of your code. This packages has _____ for mathematical calculations, working with strings, and system operations.

Answer 19

classes

Question 20

The java.lang package is on of the most important packages in java. It includes classes that are essential for writing most of your code. This packages has classes for _______, working with strings, and system operations.

Answer 20

mathematical calculations

Question 21

The java.lang package is on of the most important packages in java. It includes classes that are essential for writing most of your code. This packages has classes for mathematical calculations, working with strings, and ______.

Answer 21

system operations

Question 22

The java.lang package is on of the most important packages in java. It includes classes that are essential for writing most of your code. This packages has classes for mathematical calculations, _______, and system operations.

Answer 22

working with strings

Question 23

You can find nthe java.lang.package in the folder of the _____.

Answer 23

Java Runtime Environment

Question 24

The _____ is part of the java.lang package, so its available to all Java programs without needing to import it. This class helps with numerical calculations by providing methods for common math functions like trigonometry, logarithms, exponential, and rounding.

Answer 24

Math class

Question 25

The math class is part of the _______, so its available to all Java programs without needing to import it. This class helps with numerical calculations by providing methods for common math functions like trigonometry, logarithms, exponential, and rounding.

Answer 25

java.lang package

Question 26

The math class is part of the java.lang packages, so its available to all Java programs without needing to import it. This class helps with_______ by providing methods for common math functions like trigonometry, logarithms, exponential, and rounding.

Answer 26

numerical calculations

Question 27

When using the math class in java, its important to think about both ____ and _____

Answer 27

precision and accuracy

Question 28

Java Math Class Basic arithmetic operations

Answer 28

addExact
subtractExact
multiplyExact
incrementExact
decrementExact
negateExact
divideExact

Question 29

refers to a situation where the result of the division operation exceeds the maximum or minimum value that can be represented by the data type

Answer 29

overflows

Question 30

methods that throws an arithmetic exception if the result is _____

Answer 30

overflows

Question 31

is a mathematical expession where a variable is raised to constant exponent

Answer 31

Power Function

Question 31

methods that throws an _______ if the result is overflows

Answer 31

arithmeticException

Question 31

are mathematical functions that relate the angles of a triangle to the lengths of its sides.

Answer 31

Trigonometric Functions

Question 32

is a specific type of power function where the exponent is a fraction.

Answer 32

Root Functions

Question 33

are used to adjust a number to a specified level of precision

Answer 33

Rounding Functions

Question 34

Java API is an application

programming interface (API) that functions within software built using the ——–.

Answer 34

Java software
programming language