Productive-Code for CDPlayer-Method [Play] produced.

src/main/java/device/cdPlayer/CDPlayer.java

@@ -1,7 +1,7 @@
 package device.cdPlayer;
 
 import device.Device;
-
+import device.cdPlayer.exceptions.*;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -16,8 +16,6 @@ public class CDPlayer implements Device {
 
     private String actualPlayTrack="";
     private CD loadedCD;
-    private String[] cdAlbum=new String[]{};
-
 
     @Override
     public void louder() {
@@ -62,6 +60,19 @@ public class CDPlayer implements Device {
 
     @Override
     public String play() {
+        if(isCdFlapOpen()){
+            throw new CdFlapIsOpenException();
+        }
+        else if(!isCdFlapOpen()&&getCdDriveContent()==0){
+            throw new NoCDException();
+        }
+        else if(!isCdFlapOpen()&&getCdDriveContent()==1&&!checkFormat(loadedCD.getFormat())){
+            throw new FormatNotSupportedException();
+        }
+        else if(!isCdFlapOpen()&&getCdDriveContent()==1&&checkFormat(loadedCD.getFormat())){
+            System.out.println(loadedCD.getFormat()+" "+this.actualPlayTrack+" is playing.");
+            return "AllConditionsForPlayMet";
+        }
         return null;
     }
 
@@ -79,5 +90,20 @@ public class CDPlayer implements Device {
     public void tapOnCdFlap(){
         this.CdFlap+=1;
     }
+    private boolean checkFormat(String format){
+        if(this.supportedFormats.contains(format))
+            return true;
+        else return false;
+    }
+    private int getCdDriveContent() {
+        return CdDriveContent;
+    }
+    private boolean isCdFlapOpen() {
+        if(CdFlap==1) {
+            return true;
+        }
+        else
+            return false;
+    }
 
 }