Student\Student\.classpath
.......\.......\.project
.......\.......\bin\Doctor.class
.......\.......\...\Master.class
.......\.......\...\OwnException.class
.......\.......\...\Person.class
.......\.......\...\Student$ComparatorStudent.class
.......\.......\...\Student.class
.......\.......\...\StudentFrame.class
.......\.......\...\Students.class
.......\.......\data1.txt
.......\.......\data2.txt
.......\.......\data3.txt
.......\.......\src\Doctor.java
.......\.......\...\Master.java
.......\.......\...\OwnException.java
.......\.......\...\Person.java
.......\.......\...\Student.java
.......\.......\...\StudentFrame.java
.......\.......\...\Students.java
.......\.......\bin
.......\.......\src
.......\Student
Student