Please make java program

Including as much information as possible.

Thank

4. Write a Java program that prompts the user to enter two characters, adds them up and prints the integer value of the result. Below is an example of the execution of the program: Enter first character: a Enter second character: b Result is: 195 5. Write a Java program that prompts the user for two strings, compares them lexicographically and outputs the string in ascending order Write a Java program that generates and prints a random phone number every time the program is executed. The number should be formatted as (xxx) xxx-xxxx. The phone number may not start with 0 or 1. For example, the result of a run could be (345) 455-8999 6