declare variables final when possible

1 files changed, 5 insertions, 5 deletions

diff --git a/src/com.example.portfolio2/com/example/portfolio2/Database.java b/src/com.example.portfolio2/com/example/portfolio2/Database.java
index 2712e3d..059bb3e 100644
--- a/src/com.example.portfolio2/com/example/portfolio2/Database.java
+++ b/src/com.example.portfolio2/com/example/portfolio2/Database.java
@@ -28,7 +28,7 @@ class Database {
 	///
 	/// @param name  activity name
 	/// @return      index of activity as integer
-	int getActivityIndeks(String name) {
+	int getActivityIndeks(final String name) {
 		if(name ==null) return -1;
 		ArrayList<String> result = db.query("select indeks from activity a where name is '"+name+"';", "indeks");
 		return Integer.parseInt(result.getFirst());
@@ -38,7 +38,7 @@ class Database {
 	/// insert activity into participation
 	///
 	/// @param activityIndex  index of activity
-	void addParticipation(int activityIndex) {
+	void addParticipation(final int activityIndex) {
 		db.cmd("insert into participation values(123, "+activityIndex+");");
 	}
 
@@ -46,7 +46,7 @@ class Database {
 	///
 	/// @param program  programme name
 	/// @return         names of participating activities
-	ArrayList<String> getParticipation(String program) {
+	ArrayList<String> getParticipation(final String program) {
 		return db.query("select name from participation p inner join activity a on p.indeks = a.indeks where program is '" + program + "';", "name");
 	}
 
@@ -59,7 +59,7 @@ class Database {
 	///
 	/// @param program  programme name
 	/// @return         names of contained activities
-	ArrayList<String> selectProgram(String program) {
+	ArrayList<String> selectProgram(final String program) {
 		return db.query("select name from activity where program is '" + program + "';", "name");
 	}
 
@@ -67,7 +67,7 @@ class Database {
 	///
 	/// @param program  programme name
 	/// @return         ECTS points as String
-	String getSumEcts(String program){
+	String getSumEcts(final String program){
 		if(program==null)return "0";
 		ArrayList<String> result = db.query("select sum(activity.ects) as total_ects,student.name from student left outer join participation on student.studid = participation.studid inner join activity on participation.indeks = activity.indeks where program is '"+program+"' group by student.studid ;", "total_ects");
 		if (result.isEmpty()) return "0";