q3.java

// Mayank Yadav Q3
public class q3 {
    public static void main(String[] args) {

        System.out.println("=== Java Literals and Operators Demo ===\n");

        int decimalLiteral = 42;
        int binaryLiteral = 0b101010;
        int octalLiteral = 052;
        int hexLiteral = 0x2A;
        float floatLiteral = 3.14f;
        double doubleLiteral = 2.718281828;
        char charLiteral = 'A';
        char unicodeLiteral = '\u0041';
        boolean boolLiteral = true;
        String stringLiteral = "Hello, Java!";

        System.out.println("=== Part 1: Literals Demo ===");
        System.out.println("Decimal literal: " + decimalLiteral);
        System.out.println("Binary literal: " + binaryLiteral);
        System.out.println("Octal literal: " + octalLiteral);
        System.out.println("Hexadecimal literal: " + hexLiteral);
        System.out.println("Float literal: " + floatLiteral);
        System.out.println("Double literal: " + doubleLiteral);
        System.out.println("Character literal: " + charLiteral);
        System.out.println("Unicode character: " + unicodeLiteral);
        System.out.println("Boolean literal: " + boolLiteral);
        System.out.println("String literal: " + stringLiteral);

        int counter = 10;
        System.out.println("\n=== Part 2: Increment/Decrement Operators ===");
        System.out.println("Initial counter value: " + counter);
        System.out.println("Post-increment (counter++): " + (counter++));
        System.out.println("Counter after post-increment: " + counter);
        System.out.println("Pre-increment (++counter): " + (++counter));
        System.out.println("Counter after pre-increment: " + counter);
        System.out.println("Post-decrement (counter--): " + (counter--));
        System.out.println("Counter after post-decrement: " + counter);
        System.out.println("Pre-decrement (--counter): " + (--counter));
        System.out.println("Counter after pre-decrement: " + counter);
        
        int intVar = 5;
        double doubleVar = 2.5;
        float floatVar = 1.5f;
        char charVar = 'B';
        int result1 = intVar + 3;
        double result2 = intVar + doubleVar;
        double result3 = floatVar + doubleVar;
        int result4 = charVar + intVar;

        System.out.println("\n=== Part 3: Data Type of Expressions ===");
        System.out.println("int + int = " + result1 + " (Type: int)");
        System.out.println("int + double = " + result2 + " (Type: double)");
        System.out.println("float + double = " + result3 + " (Type: double)");
        System.out.println("char + int = " + result4 + " (Type: int, 'B' has ASCII value 66)");

        int a = 20, b = 10, c = 5;
        int result5 = a - b - c;
        int x, y, z;
        x = y = z = 15;

        System.out.println("\n=== Part 4: Operator Associativity ===");
        System.out.println("Left-to-right: 20 - 10 - 5 = " + result5);
        System.out.println("Evaluation: (20 - 10) - 5 = 10 - 5 = " + result5);
        System.out.println("Right-to-left assignment: x = y = z = 15");
        System.out.println("x = " + x + ", y = " + y + ", z = " + z);
    }
}