This code is made by java ,Compile tool:Eclipse ,jdk 1.8 This program is made by calculating user input avg-grade in GUI and output a .txt file For example: user can input john 80 70 60 ,GUI will show avg-grade is 70 and output file hhh.txt will show name:john subjectA:60 subjectb:70 subjectc:80 avg-grade:70 Welocme!