Changed to lambda

src/main/java/de/itstall/TelefonbuchController.java

@@ -76,66 +76,45 @@ public class TelefonbuchController {
         assert btnNeuerEintrag != null : "fx:id=\"btnNeuerEintrag\" was not injected: check your FXML file 'telefonbuch.fxml'.";
         assert btnLoeschen != null : "fx:id=\"btnLoeschen\" was not injected: check your FXML file 'telefonbuch.fxml'.";
 
-        txtVorname.focusedProperty().addListener(new ChangeListener<Boolean>() {
-            @Override
-            public void changed(ObservableValue<? extends Boolean> observableValue, Boolean aBoolean, Boolean t1) {
-                if(!t1) {
-                    System.out.println("Neues Value: " + txtVorname.getText());
-                }
+        txtVorname.focusedProperty().addListener((observableValue, aBoolean, t1) -> {
+            if(!t1) {
+                System.out.println("Neues Value: " + txtVorname.getText());
             }
         });
 
-        txtNachname.focusedProperty().addListener(new ChangeListener<Boolean>() {
-            @Override
-            public void changed(ObservableValue<? extends Boolean> observableValue, Boolean aBoolean, Boolean t1) {
-                if(!t1) {
-                    System.out.println("Neues Value: " + txtNachname.getText());
-                }
+        txtNachname.focusedProperty().addListener((observableValue, aBoolean, t1) -> {
+            if(!t1) {
+                System.out.println("Neues Value: " + txtNachname.getText());
             }
         });
 
-        txtStrasse.focusedProperty().addListener(new ChangeListener<Boolean>() {
-            @Override
-            public void changed(ObservableValue<? extends Boolean> observableValue, Boolean aBoolean, Boolean t1) {
-                if(!t1) {
-                    System.out.println("Neues Value: " + txtStrasse.getText());
-                }
+        txtStrasse.focusedProperty().addListener((observableValue, aBoolean, t1) -> {
+            if(!t1) {
+                System.out.println("Neues Value: " + txtStrasse.getText());
             }
         });
 
-        txtHNr.focusedProperty().addListener(new ChangeListener<Boolean>() {
-            @Override
-            public void changed(ObservableValue<? extends Boolean> observableValue, Boolean aBoolean, Boolean t1) {
-                if(!t1) {
-                    System.out.println("Neues Value: " + txtHNr.getText());
-                }
+        txtHNr.focusedProperty().addListener((observableValue, aBoolean, t1) -> {
+            if(!t1) {
+                System.out.println("Neues Value: " + txtHNr.getText());
             }
         });
 
-        txtPlz.focusedProperty().addListener(new ChangeListener<Boolean>() {
-            @Override
-            public void changed(ObservableValue<? extends Boolean> observableValue, Boolean aBoolean, Boolean t1) {
-                if(!t1) {
-                    System.out.println("Neues Value: " + txtPlz.getText());
-                }
+        txtPlz.focusedProperty().addListener((observableValue, aBoolean, t1) -> {
+            if(!t1) {
+                System.out.println("Neues Value: " + txtPlz.getText());
             }
         });
 
-        txtOrt.focusedProperty().addListener(new ChangeListener<Boolean>() {
-            @Override
-            public void changed(ObservableValue<? extends Boolean> observableValue, Boolean aBoolean, Boolean t1) {
-                if(!t1) {
-                    System.out.println("Neues Value: " + txtOrt.getText());
-                }
+        txtOrt.focusedProperty().addListener((observableValue, aBoolean, t1) -> {
+            if(!t1) {
+                System.out.println("Neues Value: " + txtOrt.getText());
             }
         });
 
-        txtTelefon.focusedProperty().addListener(new ChangeListener<Boolean>() {
-            @Override
-            public void changed(ObservableValue<? extends Boolean> observableValue, Boolean aBoolean, Boolean t1) {
-                if(!t1) {
-                    System.out.println("Neues Value: " + txtTelefon.getText());
-                }
+        txtTelefon.focusedProperty().addListener((observableValue, aBoolean, t1) -> {
+            if(!t1) {
+                System.out.println("Neues Value: " + txtTelefon.getText());
             }
         });
     }