Please write a Java code menu driven program. The menu will be responded to using a switch statement. The menu options (cases) will be as follows (You should give them more succinct labels in your program):

1. Read the users first name and echo it back out 20 times.
2. Read the users age and double it and display the age and the doubled age.
3. Read the user's age and output one of the following statements:
   1. Since you are xx years old, you are a teenager
   2. Since you are xx years old, you are NOT a teenager (***of course xx displays the user's age)
4. Read a single integer between 3 and 50 from the user. Create a triangle of Xs with the as many rows as the value of the user's input. The triangle needs to be displayed on the screen and in a text document named triangle.txt.