1. Write code for a JOptionPane dialog that will ask whether the user is at least 18 years of age. Then set the boolean variable adult equal to either true, if the user is at least 18, or false...

1. Write code for a JOptionPane dialog that will ask whether the user is at

least 18 years of age. Then set the boolean variable adult equal to either

true, if the user is at least 18, or false otherwise. Include the declaration

of the variable adult.

2. Write a fragment of code that will test whether a float variable temperature

contains a valid, human body temperature. Valid human body temperatures

are in the range 96.0 to 106.0 degree Fahrenheit.

3. Write a fragment of code that will change the integer value stored in y as

follows. If y is even, multiply y by 4 then add 3. I f y is odd, multiply y by

5 and subtract 2.