数据科学家的基本技能[关闭](Essential skills of a Data Scientist [closed])

 首先为变量和方法使用有意义的名称。 jTable1 ， br1 ， br2和jButton6ActionPerformed是不可接受的名称。 
 
 然后尝试将一个复杂的方法拆分成2或3个操作，自己分成2或3个操作，等等。每个操作都应该是一个方法调用。 例如： 
 
private void readButtonClicked() {
    String id = idTextField.getText();
    Student student = findStudentWithId(id);
    showStudentInGUI(student);
}

private Student findStudentWithId(String id) {
    List<String> lines = readLinesInFile();
    List<Student> students = transformLinesIntoStudents(lines);
    Student studentWithId = findStudentWithId(students, id);
}

private Student findStudentWithId(List<Student> students, String id) {
    for (Student student : students) {
        if (student.getId().equals(id)) {
            return student;
        }
    }
    return null;
}

private List<Student> transformLinesIntoStudents(List<String> lines) {
    List<Student> students = new ArrayList<Student>(lines.size());
    for (String line : lines) {
        students.add(parseStudentLine(line);
    }
    return students;
}

...

Start by using meaningful names for your variables and methods. jTable1, br1, br2 and jButton6ActionPerformed are not acceptable names.
 
Then try to split a complex method into 2 or three operations, themselves split into 2 or three operations, etc. Each operation should be a method call. For example:
 
private void readButtonClicked() {
    String id = idTextField.getText();
    Student student = findStudentWithId(id);
    showStudentInGUI(student);
}

private Student findStudentWithId(String id) {
    List<String> lines = readLinesInFile();
    List<Student> students = transformLinesIntoStudents(lines);
    Student studentWithId = findStudentWithId(students, id);
}

private Student findStudentWithId(List<Student> students, String id) {
    for (Student student : students) {
        if (student.getId().equals(id)) {
            return student;
        }
    }
    return null;
}

private List<Student> transformLinesIntoStudents(List<String> lines) {
    List<Student> students = new ArrayList<Student>(lines.size());
    for (String line : lines) {
        students.add(parseStudentLine(line);
    }
    return students;
}

...