With the program Lawn.java, how to sending any errors or warnings to the file Lawn-errs?

1. With the program Lawn.java,  how to sending any errors or warnings to the file Lawn-errs? 

 Write a bash script called makeit that performs the following operations. 1. Print the line "compiling lawn.java" to stdout. 2. Compile the program lawn.java, sending any errors or warnings to the file lawn-errs. 3.Print the line running Lawn.class to stdout.