Please prepare a state diagram for the lines 4 and 8 1 double a=5.0; 2 double b=7.0; 3 String c= "MIS 103"; 4 5b=a+5.0; 6a=b+5.0; 7 String c=c+ "Midterm Exam"; 8 Write a Java code that covers the following steps: Prompt to screen to enter a user name and then surname separately. Check whether inappropriate entering a number, space, or null and warn in case of inappropriate show the whole length of the name and surname together, then the first letters of the name and surname