What's hot

OPERATORS OF C++
OPERATORS OF C++
ANANT VYAS

9 cm604.10
9 cm604.10
myrajendra

SPL 6 | Operators in C
SPL 6 | Operators in C

Operator Precedence and Associativity
Operator Precedence and Associativity
Nicole Ynne Estabillo

Shubhrat operator &amp; expression
Shubhrat operator &amp; expression
Shubhrat Mishra

Type Conversion, Precedence and Associativity
Type Conversion, Precedence and Associativity
Aakash Singh

Operators in java
Operators in java
AbhishekMondal42

Nullable type in C#
Nullable type in C#
ZohaibAnwerChaudhry

Java 8 Functional Programming - I
Java 8 Functional Programming - I
Ugur Yeter

Lecture 4: Functions
Lecture 4: Functions
Vivek Bhargav

Operator.ppt
Operator.ppt
Darshan Patel

Oop using JAVA
Oop using JAVA

Type conversion, precedence, associativity in c programming
Type conversion, precedence, associativity in c programming
Dhrumil Panchal

C++
Regular expression automata
Regular expression automata
성욱 유

Operators

What's hot(16)

OPERATORS OF C++
OPERATORS OF C++

9 cm604.10
9 cm604.10

SPL 6 | Operators in C
SPL 6 | Operators in C

Operator Precedence and Associativity
Operator Precedence and Associativity

Shubhrat operator &amp; expression
Shubhrat operator &amp; expression

Type Conversion, Precedence and Associativity
Type Conversion, Precedence and Associativity

Operators in java
Operators in java

Nullable type in C#
Nullable type in C#

Java 8 Functional Programming - I
Java 8 Functional Programming - I

Lecture 4: Functions
Lecture 4: Functions

Operator.ppt
Operator.ppt

Oop using JAVA
Oop using JAVA

Type conversion, precedence, associativity in c programming
Type conversion, precedence, associativity in c programming

C++
C++

Regular expression automata
Regular expression automata

Operators
Operators

Similar to L3 operators

4_A1208223655_21789_2_2018_04. Operators.ppt
4_A1208223655_21789_2_2018_04. Operators.ppt
RithwikRanjan

OPERATORS IN C.pptx
OPERATORS IN C.pptx
SKUP1

OPERATORS IN C.pptx
OPERATORS IN C.pptx
LECO9

Operators and Expressions
Operators and Expressions
Munazza-Mah-Jabeen

Operators in C Programming
Operators in C Programming
Jasleen Kaur (Chandigarh University)

Unit ii chapter 1 operator and expressions in c
Unit ii chapter 1 operator and expressions in c
Sowmya Jyothi

OCA JAVA - 3 Programming with Java Operators
OCA JAVA - 3 Programming with Java Operators
Fernando Gil

Operators in Python
Operators in Python
Anusuya123

Chap 3(operator expression)
C Session 2.pptx for engninering students
C Session 2.pptx for engninering students
nraj02252

unit1 python.pptx
unit1 python.pptx
TKSanthoshRao

OCA Java SE 8 Exam Chapter 2 Operators & Statements
OCA Java SE 8 Exam Chapter 2 Operators & Statements
İbrahim Kürce

IOS Swift Language 3rd tutorial
IOS Swift Language 3rd tutorial
Hassan A-j

Types of Operators in C
Types of Operators in C
Thesis Scientist Private Limited

Python programming language introduction unit
Python programming language introduction unit
michaelaaron25322

operators and expressions in c++
operators and expressions in c++
sanya6900

Operators in Python Arithmetic Operators
Operators in Python Arithmetic Operators
ramireddyobulakondar

Py-Slides-2.ppt
Py-Slides-2.ppt
AllanGuevarra1

Py-Slides-2 (1).ppt
Py-Slides-2 (1).ppt
KalaiVani395886

Py-Slides-2.ppt
Py-Slides-2.ppt
TejaValmiki

Similar to L3 operators(20)

4_A1208223655_21789_2_2018_04. Operators.ppt
4_A1208223655_21789_2_2018_04. Operators.ppt

OPERATORS IN C.pptx
OPERATORS IN C.pptx

OPERATORS IN C.pptx
OPERATORS IN C.pptx

Operators and Expressions
Operators and Expressions

Operators in C Programming
Operators in C Programming

Unit ii chapter 1 operator and expressions in c
Unit ii chapter 1 operator and expressions in c

OCA JAVA - 3 Programming with Java Operators
OCA JAVA - 3 Programming with Java Operators

Operators in Python
Operators in Python

Chap 3(operator expression)
Chap 3(operator expression)

C Session 2.pptx for engninering students
C Session 2.pptx for engninering students

unit1 python.pptx
unit1 python.pptx

OCA Java SE 8 Exam Chapter 2 Operators & Statements
OCA Java SE 8 Exam Chapter 2 Operators & Statements

IOS Swift Language 3rd tutorial
IOS Swift Language 3rd tutorial

Types of Operators in C
Types of Operators in C

Python programming language introduction unit
Python programming language introduction unit

operators and expressions in c++
operators and expressions in c++

Operators in Python Arithmetic Operators
Operators in Python Arithmetic Operators

Py-Slides-2.ppt
Py-Slides-2.ppt

Py-Slides-2 (1).ppt
Py-Slides-2 (1).ppt

Py-Slides-2.ppt
Py-Slides-2.ppt

More from teach4uin

Controls
Controls
teach4uin

validation
validation
teach4uin

validation
validation
teach4uin

Master pages
Master pages
teach4uin

.Net framework
.Net framework
teach4uin

Scripting languages
Scripting languages
teach4uin

Css1
Css1
teach4uin

Code model
Code model
teach4uin

Asp db
Asp db
teach4uin

State management
State management
teach4uin

security configuration
security configuration
teach4uin

static dynamic html tags
static dynamic html tags
teach4uin

static dynamic html tags
static dynamic html tags
teach4uin

New microsoft office power point presentation
New microsoft office power point presentation
teach4uin

.Net overview
.Net overview
teach4uin

Stdlib functions lesson
Stdlib functions lesson
teach4uin

enums
enums
teach4uin

memory
memory
teach4uin

array
array
teach4uin

storage clas
storage clas
teach4uin

More from teach4uin(20)

Controls
Controls

validation
validation

validation
validation

Master pages
Master pages

.Net framework
.Net framework

Scripting languages
Scripting languages

Css1
Css1

Code model
Code model

Asp db
Asp db

State management
State management

security configuration
security configuration

static dynamic html tags
static dynamic html tags

static dynamic html tags
static dynamic html tags

New microsoft office power point presentation
New microsoft office power point presentation

.Net overview
.Net overview

Stdlib functions lesson
Stdlib functions lesson

enums
enums

memory
memory

array
array

storage clas
storage clas

Best Practices for Effectively Running dbt in Airflow.pdf
Best Practices for Effectively Running dbt in Airflow.pdf
Tatiana Al-Chueyr

WPRiders Company Presentation Slide Deck
WPRiders Company Presentation Slide Deck
Lidia A.

Amul milk launches in US: Key details of its new products ...
Amul milk launches in US: Key details of its new products ...
chetankumar9855

Pigging Solutions Sustainability brochure.pdf
Pigging Solutions Sustainability brochure.pdf
Pigging Solutions

How to Build a Profitable IoT Product.pptx
How to Build a Profitable IoT Product.pptx

ScrumGathering New Orleans 2024 Catherine Louis.pdf
ScrumGathering New Orleans 2024 Catherine Louis.pdf
Global Agile Consulting- CLL-Group, LLC

Quantum Communications Q&A with Gemini LLM
Quantum Communications Q&A with Gemini LLM
Vijayananda Mohire

BT & Neo4j: Knowledge Graphs for Critical Enterprise Systems.pptx.pdf
BT & Neo4j: Knowledge Graphs for Critical Enterprise Systems.pptx.pdf
Neo4j

Calgary MuleSoft Meetup APM and IDP .pptx
Calgary MuleSoft Meetup APM and IDP .pptx
ishalveerrandhawa1

Data Integration Basics: Merging & Joining Data
Data Integration Basics: Merging & Joining Data
Safe Software

BLOCKCHAIN FOR DUMMIES: GUIDEBOOK FOR ALL
BLOCKCHAIN FOR DUMMIES: GUIDEBOOK FOR ALL
Liveplex

find out more about the role of autonomous vehicles in facing global challenges
find out more about the role of autonomous vehicles in facing global challenges
huseindihon

Coordinate Systems in FME 101 - Webinar Slides
Coordinate Systems in FME 101 - Webinar Slides
Safe Software

Salesforce AI & Einstein Copilot Workshop
Salesforce AI & Einstein Copilot Workshop
CEPTES Software Inc

“Deploying Large Language Models on a Raspberry Pi,” a Presentation from Usef...
“Deploying Large Language Models on a Raspberry Pi,” a Presentation from Usef...
Edge AI and Vision Alliance

HackersList

Toru Tamaki

Gen-AI in Telcos: Strategies, Challenges & Impact
Gen-AI in Telcos: Strategies, Challenges & Impact
aejazahamed4

Recent Advancements in the NIST-JARVIS Infrastructure
Recent Advancements in the NIST-JARVIS Infrastructure
KAMAL CHOUDHARY

Fluttercon 2024: Showing that you care about security - OpenSSF Scorecards fo...
Fluttercon 2024: Showing that you care about security - OpenSSF Scorecards fo...
Chris Swan

Best Practices for Effectively Running dbt in Airflow.pdf
Best Practices for Effectively Running dbt in Airflow.pdf

WPRiders Company Presentation Slide Deck
WPRiders Company Presentation Slide Deck

Amul milk launches in US: Key details of its new products ...
Amul milk launches in US: Key details of its new products ...

Pigging Solutions Sustainability brochure.pdf
Pigging Solutions Sustainability brochure.pdf

How to Build a Profitable IoT Product.pptx
How to Build a Profitable IoT Product.pptx

ScrumGathering New Orleans 2024 Catherine Louis.pdf
ScrumGathering New Orleans 2024 Catherine Louis.pdf

Quantum Communications Q&A with Gemini LLM
Quantum Communications Q&A with Gemini LLM

BT & Neo4j: Knowledge Graphs for Critical Enterprise Systems.pptx.pdf
BT & Neo4j: Knowledge Graphs for Critical Enterprise Systems.pptx.pdf

Calgary MuleSoft Meetup APM and IDP .pptx
Calgary MuleSoft Meetup APM and IDP .pptx

Data Integration Basics: Merging & Joining Data
Data Integration Basics: Merging & Joining Data

BLOCKCHAIN FOR DUMMIES: GUIDEBOOK FOR ALL
BLOCKCHAIN FOR DUMMIES: GUIDEBOOK FOR ALL

find out more about the role of autonomous vehicles in facing global challenges
find out more about the role of autonomous vehicles in facing global challenges

Coordinate Systems in FME 101 - Webinar Slides
Coordinate Systems in FME 101 - Webinar Slides

Salesforce AI & Einstein Copilot Workshop
Salesforce AI & Einstein Copilot Workshop

“Deploying Large Language Models on a Raspberry Pi,” a Presentation from Usef...
“Deploying Large Language Models on a Raspberry Pi,” a Presentation from Usef...

Gen-AI in Telcos: Strategies, Challenges & Impact
Gen-AI in Telcos: Strategies, Challenges & Impact

Recent Advancements in the NIST-JARVIS Infrastructure
Recent Advancements in the NIST-JARVIS Infrastructure

Fluttercon 2024: Showing that you care about security - OpenSSF Scorecards fo...
Fluttercon 2024: Showing that you care about security - OpenSSF Scorecards fo...

L3 operators

• 1. Programming in Java Lecture 3: Operators and Expressions
• 2. Contents • Operators in Java • Arithmetic Operators • Bitwise Operators • Relational Operators • Logical Operators
• 3. Operators in Java • Java’s operators can be grouped into following four categories: 1. Arithmetic 2. Bitwise 3. Relational 4. Logical.
• 4. Arithmetic Operators • used in mathematical expressions. • operands of the arithmetic operators must be of a numeric type. • most operators in Java work just like they do in C/C++. • We can not use them on boolean types, but we can use them on char types, since the char type in Java is, essentially, a subset of int.
• 5. Arithmetic Operators Operator Result • + Addition • - Subtraction (also unary minus) • * Multiplication • / Division • % Modulus • ++ Increment • += Addition assignment • -= Subtraction assignment • *= Multiplication assignment • /= Division assignment • %= Modulus assignment • - - Decrement
• 6. Modulus Operator (%) • returns the remainder of a division operation. • can be applied to floating-point types as well as integer types. • This differs from C/C++, in which the % can only be applied to integer types. Example: Modulus.java
• 7. Arithmetic Assignment Operators • used to combine an arithmetic operation with an assignment. Thus, the statements of the form var = var op expression; can be rewritten as var op= expression; • In Java, statements like a = a + 5; can be written as a += 5; Similarly: b = b % 3; can be written as b %= 3;
• 8. Increment and Decrement • ++ and the - - are Java's increment and decrement operators. • The increment operator increases its operand by one. • x++; is equivalent to x = x + 1; • The decrement operator decreases its operand by one. • y--; is equivalent to y = y – 1; • They can appear both in • postfix form, where they follow the operand, and • prefix form, where they precede the operand.
• 9. • In the prefix form, the operand is incremented or decremented before the value is obtained for use in the expression. Example: x = 19; y = ++x; Output: y = 20 and x = 20 • In postfix form, the previous value is obtained for use in the expression, and then the operand is modified. Example: x = 19; y = x++; Output: y = 19 and x = 20
• 10. Bitwise Operators • These operators act upon the individual bits of their operands. • can be applied to the integer types, long, int, short, char, and byte.
• 11. Operator Result ~ Bitwise unary NOT & Bitwise AND | Bitwise OR ^ Bitwise exclusive OR >> Shift right >>> Shift right zero fill << Shift left &= Bitwise AND assignment |= Bitwise OR assignment ^= Bitwise exclusive OR assignment >>= Shift right assignment >>>= Shift right zero fill assignment <<= Shift left assignment
• 12. Bitwise Logical Operators • The bitwise logical operators are • ~ (NOT) • & (AND) • | (OR) • ^ (XOR) • Example:
• 13. The Left Shift • The left shift operator,<<, shifts all of the bits in a value to the left a specified number of times. value << num • Example: • 01000001 65 • << 2 • 00000100 4
• 14. The Right Shift • The right shift operator, >>, shifts all of the bits in a value to the right a specified number of times. value >> num • Example: • 00100011 35 • >> 2 • 00001000 8
• 15. • When we are shifting right, the top (leftmost) bits exposed by the right shift are filled in with the previous contents of the top bit. • This is called sign extension and serves to preserve the sign of negative numbers when you shift them right.
• 16. The Unsigned Right Shift • In these cases, to shift a zero into the high-order bit no matter what its initial value was. This is known as an unsigned shift. • To accomplish this, we will use Java’s unsigned, shift-right operator, >>>, which always shifts zeros into the high-order bit. • Example: • 11111111 11111111 11111111 11111111 –1 in binary as an int • >>>24 • 00000000 00000000 00000000 11111111 255 in binary as an int
• 17. Bitwise Operator Compound Assignments • combines the assignment with the bitwise operation. • Similar to the algebraic operators • For example, the following two statements, which shift the value in a right by four bits, are equivalent: a = a >> 4; a >>= 4; • Likewise, a = a | b; a |= b;
• 18. Relational Operators • The relational operators determine the relationship that one operand has to the other. • Relational operators determine equality and ordering. • The outcome of relational operations is a boolean value. Operator Function == equal to != not equal to < less than > greater than <= less than or equal to >= greater than or equal to
• 19. • The result produced by a relational operator is a boolean value. • For example, the following code fragment is perfectly valid: • int a = 4; • int b = 1; • boolean c = a < b; •In this case, the result of a<b (which is false) is stored in c.
• 20. Boolean Logical Operators • The Boolean logical operators shown here operate only on boolean operands. Operator Result & Logical AND | Logical OR ^ Logical XOR (exclusive OR) || Short-circuit OR && Short-circuit AND ! Logical unary NOT &= AND assignment |= OR assignment ^= XOR assignment == Equal to != Not equal to ?: Ternary if-then-else
• 21. •All of the binary logical operators combine two boolean values to form a resultant boolean value. •The logical Boolean operators,&, |, and ^, operate on boolean values in the same way that they operate on the bits of an integer. •The following table shows the effect of each logical operation: A B A | B A & B A ^ B ~ A False False False False False True True False True False True False False True True False True True True True True True False False
• 22. Short-Circuit Logical Operators • These are secondary versions of the Boolean AND and OR operators, and are known as short-circuit logical operators. • OR operator results in true when A is true , no matter what B is. • Similarly, AND operator results in false when A is false, no matter what B is. • If we use the || and && forms, rather than the | and & forms of these operators, Java will not bother to evaluate the right-hand operand when the outcome of the expression can be determined by the left operand alone. •This is very useful when the right-hand operand depends on the value of the left one in order to function properly.
• 23. • For example if (denom != 0 && num / denom > 10) • the following code fragment shows how you can take advantage of short-circuit logical evaluation to be sure that a division operation will be valid before evaluating it. • circuit form of AND (&&) is used, there is no risk of causing a run-time exception when denom is zero. • If this line of code were written using the single & version of AND, both sides would be evaluated, causing a run-time exception when denom is zero.
• 24. The Assignment Operator • The assignment operator is the single equal sign, =. • The assignment operator works in Java much as it does in any other computer language. var = expression ; • Here, the type of var must be compatible with the type of expression. • The assignment operator allows to create a chain of assignments. • For example: int x, y, z; x = y = z = 100; // set x, y, and z to 100 • This fragment sets the variables x , y, and z to 100 using a single statement.
• 25. The ? Operator • Java includes a special ternary (three-way)operator, ?, that can replace certain types of if-then-else statements. •The ? has this general form: expression1 ? expression2 : expression3 • Here,expression1 can be any expression that evaluates to a boolean value. • If expression1 is true , then expression2 is evaluated; otherwise, expression3 is evaluated. • The result of the? operation is that of the expression evaluated. • Both expression2 and expression3 are required to return the same type, which can’t be void.
• 26. • Example: TestTernary.java ratio = denom == 0 ? 0 : num / denom ; •When Java evaluates this assignment expression, it first looks at the expression to the left of the question mark. • If denom equals zero, then the expression between the question mark and the colon is evaluated and used as the value of the entire ? expression. •If denom does not equal zero, then the expression after the colon is evaluated and used for the value of the entire ? expression. •The result produced by the? operator is then assigned to ratio.
• 27. Operator Precedence Highest ( ) [] . ++ -- % + - >> >>> << > >= < <= == != & ^ | && || ?: = Op= Lowest

Editor's Notes

1. 이 TP에서는 자바의 생성 배경과 그 동안 자바가 어떻게 발전해 왔는지에 대해 설명한다.
Current LanguageEnglish
Español
Portugues
Français
Deutsche