changing primitive datatype to object

Author: Hattinger04

src/main/java/io/github/Hattinger04/course/Course.java

@@ -24,7 +24,7 @@ public class Course {
 //	@GeneratedValue(strategy = GenerationType.IDENTITY)
 //	@Column(name = "user_id")
 	@Getter @Setter
-	private int id; // TODO: primary_key
+	private Integer id; // TODO: primary_key
 
 	@Getter @Setter
 	private String name;  // TODO: unique

src/main/java/io/github/Hattinger04/course/Exercise.java

@@ -13,7 +13,7 @@
 public class Exercise {
 
 	@Getter @Setter
-	private int id; // TODO: primary_key
+	private Integer id; // TODO: primary_key
 
 	@Getter @Setter
 	private String name; // TODO: unique 
@@ -27,17 +27,17 @@ public void setText(String text) {
 	}
 
 	@Getter @Setter
-	private int course_id; 
+	private Integer course_id; 
 
 	@Getter @Setter
-	private int teacher_id; 
+	private Integer teacher_id; 
 
 	@Getter @Setter
-	private int student_id; 
+	private Integer student_id; 
 
 /* TODO: best solution? 
  * @Getter @Setter
-	private boolean finished;
+	private Boolean finished;
 	
 	@Getter @Setter
 	private String answer; 

src/main/java/io/github/Hattinger04/course/Student.java

@@ -14,7 +14,7 @@
 public class Student {
 
 	@Getter @Setter
-	private int id; // TODO: primary_key
+	private Integer id; // TODO: primary_key
 
 	@Getter @Setter
 	private String name; // TODO: unique

src/main/java/io/github/Hattinger04/course/Teacher.java

@@ -14,7 +14,7 @@
 public class Teacher {
 
 	@Getter @Setter
-	private int id; // TODO: primary_key
+	private Integer id; // TODO: primary_key
 
 	@Getter @Setter
 	private String name; // TODO: unique