Java Operators with Simple introduction.pptx

it is Simple introduction of the topics with some examples and quiz

1. Java Operators An overview of different operators used in Java programming.

2. This presentation provides a detailed examination of Java operators including arithmetic, logical, relational, and more, along with their usage and examples. Introduction

3. Arithmetic Operators 01

4. Arithmetic operators are used to perform mathematical operations on variables and values. They include addition, subtraction, multiplication, and division. Definition and Usage

5. Common Operations Key arithmetic operators include: 1. Addition (+) 2. Subtraction (-) 3. Multiplication (*) 4. Division (/) 5. Modulus (%) which finds the remainder.

6. For example: 1. int result = a + b; // Addition 2. int result = a - b; // Subtraction 3. int result = a * b; // Multiplication 4. int result = a / b; // Division 5. int result = a % b; // Modulus Examples

7. Logical Operators 02

8. Logical operators are used to combine multiple boolean expressions. They include AND (&&), OR (||), and NOT (!). Definition and Purpose

9. Operation Types 1. AND (&&) - true if both operands are true. 2. OR (||) - true if at least one operand is true. 3. NOT (!) - reverses the boolean value of an operand.

10. For example: 1. boolean result = (a > b) && (b < c); 2. boolean result = (a < b) || (b > c); 3. boolean result = !(a == b); Examples

11. Relational Operators 03

12. Definition and Application Relational operators are used to compare two values and return a boolean result (true or false). They include equal to, not equal to, greater than, less than, and so on.

13. Common relational operators include: 1. Equal to (==) 2. Not equal to (!=) 3. Greater than (>) 4. Less than (<) 5. Greater than or equal to (>=) 6. Less than or equal to (<=) Comparison Functions

14. For example: 1. if (a == b) { ... } 2. if (a != b) { ... } 3. if (a > b) { ... } 4. if (a < b) { ... } Examples

15. Assignment Operators 04

16. Assignment operators assign values to variables. The main operator is the equal sign (=). Basic Assignment

17. Combined assignment operators modify the value of a variable based on its current value: 1. +=, -=, *=, /=, %=. Combined Operations

18. Examples For example: 1. int result = a & b; // Bitwise AND 2. int result = a | b; // Bitwise OR 3. int result = a ^ b; // Bitwise XOR 4. int result = ~a; // Bitwise NOT 5. int result = a << 2; // Left shift 6. int result = a >> 2; // Right shift

19. Bitwise Operators 05

20. Bitwise operators perform operations on individual bits of integer values. They are used for low-level programming, such as hardware manipulation and encryption techniques. Definition and Functions

21. 1. Bitwise AND (&) 2. Bitwise OR (|) 3. Bitwise XOR (^) 4. Bitwise NOT (~) 5. Left Shift (<<) 6. Right Shift (>>). Types of Bitwise Operations

22. Examples For example: 1. int a = 5; // 0101 in binary 2. int b = 3; // 0011 in binary 3. Bitwise AND: a & b results in 1 (0001). 4. Bitwise OR: a | b results in 7 (0111).

23. Unary Operators 06

24. Unary operators are operators that operate on a single operand and include: 1. Unary plus (+) 2. Unary minus (-) 3. Increment (++) 4. Decrement (--). Definition and Types

25. Increment (++) increases the value of a variable by one. Decrement (--) decreases the value of a variable by one. They can be used in either prefix or postfix notation. Increment and Decrement

26. Examples For example: 1. int a = 5; 2. int b = ++a; // a becomes 6 3. int c = a--; // c becomes 6, a becomes 5 again

27. Conditional Operator 07

28. Definition and Syntax The conditional operator (?:) is a shortcut for the if-else statement. It takes three operands and evaluates one of the two expressions based on a boolean condition.

29. Used for concise conditional expressions: - Assigning a value based on a condition. - Evaluating small conditional logic without multiple lines of code. Usage Scenarios

30. For example: 1. int max = (a > b) ? a : b; 2. String result = (isTrue) ? "Yes" : "No"; Examples

31. instanceof Operator 08

32. Definition and Purpose The instanceof operator checks whether an object is an instance of a specific class or subclass. It returns true if the object is of the specified type, otherwise false.

33. Used frequently in polymorphism to determine the actual object type during runtime. This helps avoid ClassCastException. Type Checking

34. For example: 1. if (obj instanceof String) { ... } 2. if (a instanceof ParentClass) { ... } Examples

35. In summary, understanding Java operators is essential for effective programming. Each operator serves a specific purpose, allowing developers to perform various operations and make logical evaluations efficiently. Conclusions

36. Thank you! Do you have any questions? Please keep this slide for attribution