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

3. Arithmetic Operators 01

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

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

6. Examples 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

7. Logical Operators 02

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

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

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. Comparison Functions 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 (<=)

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

15. Assignment Operators 04

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

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

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

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

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

25. Increment and Decrement 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.

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

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

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

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

35. Conclusions 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.

36. Thank you! Do you have any questions? [phone]