Make a java program

note i just need to understand how to write the code you can take any random alphabet

Declare Seven integer variables Using the value X,Y,Z,A,B,C,D. X = Sum of 6 and alphabetic order of the 1st letter of your last name Y = Sum of 12 and alphabetic order of the 2nd letter of your last name Z = sum of 4 alphabetic order of the 3rd letter of your last name A = alphabetic order of the 1st letter of your first name B = multiplication of 2 and alphabetic order of the 2nd letter of your first name C = alphabetic order of the 3rd letter of your first name D = sum of alphabetic order of the 3rd letter of your first name and 3rd letter of your last name. Now check the given conditions for all the values: If the value is within the range of 4-8 print "Bangladesh." If the value is within the range of 9-12 print "DHAKA." If the value is within the range of 21-25 print "CHITTAGONG" Otherwise, print "Out of Range." Note: Use Switch..Case to solve this problem.