Java Programming Exercise

Q1. Write a Java program to build a calculator to perform all arithmetic operations where you have to take input through command line like this:

Q2. Write a Java program to enter temperature in Celcius and convert it into Fahrenheit. Take input through command line.

Q3. Write a java program to convert days into years, weeks and days. Take days as an input through command line.

Q4. Write a java program to take date of birth as input and find out age of the person. Take input through command line.
Hint : Use Date and Calendar Class

Q5. Write a java program to convert username into proper case. Take input through command line.
For example
- Input : rAm KUmar shARma
- Output : Ram Kumar Sharma
Hint : Use String class methods