### opdracht 1 ###
### Student.java ###
public class Student {
...
Double studentCijfer;
...
public Student(..., Double cijferStud){
...
this.studentCijfer = cijferStud;
...
}
...
public Double getStudentCijfer() {
return studentCijfer;
}
...
}
### MainActivity.java ###
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
...
Student s = new Student("Jean Luc", 23, 5.3);
String varMessage1 = Double.toString(s.studentCijfer);
...
}
Download hier het bestand.
### opdracht 2 ###
### activity_main.xml ###
<androidx.constraintlayout.widget...>
...
<EditText
android:id="@+id/editTextStudentNaam"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName"
android:text="Naam"
tools:layout_editor_absoluteX="7dp"
tools:layout_editor_absoluteY="6dp" />
<EditText
android:id="@+id/editTextStudentNummer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="44dp"
android:ems="10"
android:inputType="textPersonName"
android:text="Nummer"
app:layout_constraintTop_toBottomOf="@+id/editTextStudentNaam"
tools:layout_editor_absoluteX="7dp" />
<EditText
android:id="@+id/editTextStudentCijfer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="44dp"
android:ems="10"
android:inputType="textPersonName"
android:text="Cijfer"
app:layout_constraintTop_toBottomOf="@+id/editTextStudentNummer"
tools:layout_editor_absoluteX="7dp" />
<Button
android:id="@+id/button"
android:layout_width="165dp"
android:layout_height="40dp"
android:layout_marginStart="32dp"
android:text="Button"
app:layout_constraintStart_toEndOf="@+id/editTextStudentNaam"
tools:layout_editor_absoluteY="6dp" />
...
</androidx.constraintlayout.widget.ConstraintLayout>
Download hier het bestand.
### opdracht 3 ###
### activity_main.xml ###
<androidx.constraintlayout.widget...>
<Button
...
android:onClick="initStudent"
.../>
</androidx.constraintlayout.widget.ConstraintLayout>
### MainActivity.java ###
public class MainActivity extends AppCompatActivity {
...
public void initStudent (View view) {
EditText studentNaam = (EditText)findViewById(R.id.editTextStudentNaam);
EditText studentNummer = (EditText)findViewById(R.id.editTextStudentNummer);
EditText studentCijfer = (EditText)findViewById(R.id.editTextStudentCijfer);
String Naam = studentNaam.getText().toString();
int Nummer = Integer.parseInt(studentNummer.getText().toString());
Double Cijfer = Double.parseDouble(studentCijfer.getText().toString());
Student s = new Student(Naam,Nummer,Cijfer);
String varMessage1 = Double.toString(s.getStudentCijfer());
TextView myTextView = (TextView)findViewById(R.id.textView1);
myTextView.setText(varMessage1);
}
...
}
Download hier het bestand.
### opdracht 4 ###
### Student.java ###
public class Student {
...
public String getUitslag(){
if (studentCijfer >= 5.5) {
return "Geslaagd";
} else {
return "Gezakt";
}
}
...
}
### MainActivity.java ###
public class MainActivity extends AppCompatActivity {
...
public void initStudent (View view) {
...
String varMessage1 = s.getUitslag();
...
}
...
}
Download hier het bestand.