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Update q3.java #3

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44 changes: 22 additions & 22 deletions q3/q3.java
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Original file line number Diff line number Diff line change
Expand Up @@ -9,70 +9,70 @@ public static void main(String[] args) {
System.out.println("=== Part 1: Literals Demo ===");

// FILL HERE: Create an integer literal variable 'decimal' with value 42
int decimal = 0; // Replace 0 with correct value
int decimal = 42; // Replace 0 with correct value

// FILL HERE: Create a binary literal variable 'binary' with value 0b101010 (which is 42 in decimal)
int binary = 0; // Replace 0 with correct binary literal
int binary = 0b101010; // Replace 0 with correct binary literal

// FILL HERE: Create an octal literal variable 'octal' with value 052 (which is 42 in decimal)
int octal = 0; // Replace 0 with correct octal literal
int octal = 052; // Replace 0 with correct octal literal

// FILL HERE: Create a hexadecimal literal variable 'hex' with value 0x2A (which is 42 in decimal)
int hex = 0; // Replace 0 with correct hexadecimal literal
int hex = 0x2A; // Replace 0 with correct hexadecimal literal

System.out.println("Decimal literal: " + decimal);
System.out.println("Binary literal: " + binary);
System.out.println("Octal literal: " + octal);
System.out.println("Hexadecimal literal: " + hex);

// FILL HERE: Create a float literal variable 'floatNum' with value 3.14f
float floatNum = 0.0f; // Replace with correct value
float floatNum = 3.14f; // Replace with correct value

// FILL HERE: Create a double literal variable 'doubleNum' with value 2.718281828
double doubleNum = 0.0; // Replace with correct value
double doubleNum = 2.718281828; // Replace with correct value

System.out.println("Float literal: " + floatNum);
System.out.println("Double literal: " + doubleNum);

// FILL HERE: Create a char literal variable 'letter' with value 'A'
char letter = ' '; // Replace with correct character
char letter = 'A'; // Replace with correct character

// FILL HERE: Create a char literal variable 'unicodeChar' with value '\u0041' (which is 'A')
char unicodeChar = ' '; // Replace with correct unicode character
char unicodeChar = '\u0041'; // Replace with correct unicode character

System.out.println("Character literal: " + letter);
System.out.println("Unicode character: " + unicodeChar);

// FILL HERE: Create a boolean literal variable 'isTrue' with value true
boolean isTrue = false; // Replace with correct value
boolean isTrue = true; // Replace with correct value

// FILL HERE: Create a String literal variable 'message' with value "Hello, Java!"
String message = ""; // Replace with correct string
String message = "Hello, Java!"; // Replace with correct string

System.out.println("Boolean literal: " + isTrue);
System.out.println("String literal: " + message);

System.out.println("\n=== Part 2: Increment/Decrement Operators ===");

// FILL HERE: Create an integer variable 'counter' with initial value 10
int counter = 0; // Replace with correct initial value
int counter = 10; // Replace with correct initial value

System.out.println("Initial counter value: " + counter);

// FILL HERE: Use post-increment (counter++) in the println statement
System.out.println("Post-increment (counter++): " + counter); // Add post-increment operation
System.out.println("Post-increment (counter++): " + counter++); // Add post-increment operation
System.out.println("Counter after post-increment: " + counter);

// FILL HERE: Use pre-increment (++counter) in the println statement
System.out.println("Pre-increment (++counter): " + counter); // Add pre-increment operation
System.out.println("Pre-increment (++counter): " + ++counter); // Add pre-increment operation
System.out.println("Counter after pre-increment: " + counter);

// FILL HERE: Use post-decrement (counter--) in the println statement
System.out.println("Post-decrement (counter--): " + counter); // Add post-decrement operation
System.out.println("Post-decrement (counter--): " + counter--); // Add post-decrement operation
System.out.println("Counter after post-decrement: " + counter);

// FILL HERE: Use pre-decrement (--counter) in the println statement
System.out.println("Pre-decrement (--counter): " + counter); // Add pre-decrement operation
System.out.println("Pre-decrement (--counter): " + --counter); // Add pre-decrement operation
System.out.println("Counter after pre-decrement: " + counter);

System.out.println("\n=== Part 3: Data Type of Expressions ===");
Expand All @@ -85,25 +85,25 @@ public static void main(String[] args) {

// Expression 1: int + int
// FILL HERE: Create a variable 'result1' that stores intVar + 3 (determine the correct data type)
int result1 = 0; // Replace with correct expression and fix data type if needed
int result1 = intVAr + 3; // Replace with correct expression and fix data type if needed

System.out.println("int + int = " + result1 + " (Type: int)");

// Expression 2: int + double
// FILL HERE: Create a variable 'result2' that stores intVar + doubleVar (determine the correct data type)
double result2 = 0.0; // Replace with correct expression and fix data type if needed
double result2 = intVAr + doubleVar; // Replace with correct expression and fix data type if needed

System.out.println("int + double = " + result2 + " (Type: double)");

// Expression 3: float + double
// FILL HERE: Create a variable 'result3' that stores floatVar + doubleVar (determine the correct data type)
double result3 = 0.0; // Replace with correct expression and fix data type if needed
double result3 =floatVar + doubleVar; // Replace with correct expression and fix data type if needed

System.out.println("float + double = " + result3 + " (Type: double)");

// Expression 4: char + int
// FILL HERE: Create a variable 'result4' that stores charVar + intVar (determine the correct data type)
int result4 = 0; // Replace with correct expression and fix data type if needed
int result4 = charVar + intVar; // Replace with correct expression and fix data type if needed

System.out.println("char + int = " + result4 + " (Type: int, 'B' has ASCII value 66)");

Expand All @@ -112,15 +112,15 @@ public static void main(String[] args) {
// Demonstrate left-to-right associativity with subtraction
int a = 20, b = 10, c = 5;
// FILL HERE: Calculate result5 = a - b - c (should be evaluated as (a - b) - c)
int result5 = 0; // Replace with correct expression
int result5 = (a-b)-c; // Replace with correct expression

System.out.println("Left-to-right: " + a + " - " + b + " - " + c + " = " + result5);
System.out.println("Evaluation: (" + a + " - " + b + ") - " + c + " = " + (a - b) + " - " + c + " = " + result5);

// FILL HERE: Demonstrate right-to-left associativity with assignment
int x = 0, y = 0, z = 0; // Replace this line with chained assignment x = y = z = 15
int x = 15, y = 15, z = 15; // Replace this line with chained assignment x = y = z = 15

System.out.println("Right-to-left assignment: x = y = z = 15");
System.out.println("x = " + x + ", y = " + y + ", z = " + z);
}
}
}