Java program to Convert 90 degrees Fahrenheit to Celsius

Java program to Convert 90 degrees Fahrenheit to Celsius. Use the following formula: C = (F – 32) × 5/9) to calculate it and Print out the Celsius convertion without declaring any variables

The Correct Answer and Explanation is :

Here is the Java program to convert 90 degrees Fahrenheit to Celsius without explicitly declaring any variables:

Explanation:

1. No Variable Declaration: The program directly uses the literal value 90 (the Fahrenheit temperature) in the formula, avoiding the need for variable declarations.
2. Formula Application: The formula for converting Fahrenheit to Celsius is C = (F - 32) × 5/9. In the code:
   • 90 is substituted for F.
   • The subtraction (90 - 32) calculates the difference between the given Fahrenheit value and 32.
   • This difference is then multiplied by 5 and divided by 9 in sequence to convert it to Celsius.
3. Output: The program uses System.out.println to print the conversion result directly. The computation result is concatenated with the explanatory text to form a complete output message.
4. Result: The Celsius equivalent of 90 degrees Fahrenheit is calculated as: C=(90−32)timesfrac59=58timesfrac59=32.222…C = (90 – 32) \\times \\frac{5}{9} = 58 \\times \\frac{5}{9} = 32.222\ldots The program will display the rounded value of 32 in integer division, as Java’s integer arithmetic is used.

Advantages:

• Simplicity: Avoiding variables makes the code concise and straightforward.
• Readability: The formula is directly applied in the output statement, making it easy to follow.

Limitations:

• No Flexibility: The Fahrenheit value cannot be dynamically changed unless the code is modified.
• Integer Division: Java’s integer arithmetic may lead to truncation; for more precise results, 90.0 can be used instead of 90 to ensure floating-point division.