what's the Java code for these questions?

Q3) ( 15 points) a. Write a JAVA program that reads an array from input file and invokes two different Sort and Max ,that sorts the elements of the array and finds the Max element and ay in to output file. Use two interfaces for methods and throw Exception Handling For Out Of Bound index for the array. b. Write a program to create e a program to create a room class, the attributes of this class is roomno, roomtype, roomarea and ACmachine. In this class the member functions are setdata and