cleaned backstage passes

Inventory.java

@@ -7,34 +7,19 @@ public class Inventory {
         this.items = items;
     }
 
-
     public void updateQuality() {
         for (int i = 0; i < items.length; i++) {
-            if (!items[i].getName().equals("Aged Brie")
-                    && !items[i].getName().equals("Backstage passes to a TAFKAL80ETC concert")) {
+            if(items[i].getName().equals("Backstage passes to a TAFKAL80ETC concert")){
+                increaseQualityByOne(i);
+                increaseQualityForBackstagePasses(i);
+            }else if(items[i].getName().equals("Aged Brie")){
+                increaseQualityByOne(i);
+            }else{
                 if (items[i].getQuality() > 0) {
                     if (!items[i].getName().equals("Sulfuras, Hand of Ragnaros")) {
                         items[i].setQuality(items[i].getQuality() - 1);
                     }
                 }
-            } else {
-                if (items[i].getQuality() < 50) {
-                    items[i].setQuality(items[i].getQuality() + 1);
-
-                    if (items[i].getName() == "Backstage passes to a TAFKAL80ETC concert") {
-                        if (items[i].getSellIn() < 11) {
-                            if (items[i].getQuality() < 50) {
-                                items[i].setQuality(items[i].getQuality() + 1);
-                            }
-                        }
-
-                        if (items[i].getSellIn() < 6) {
-                            if (items[i].getQuality() < 50) {
-                                items[i].setQuality(items[i].getQuality() + 1);
-                            }
-                        }
-                    }
-                }
             }
 
             if (!items[i].getName().equals("Sulfuras, Hand of Ragnaros")) {
@@ -51,14 +36,28 @@ public class Inventory {
                         }
                     } else {
                         items[i].setQuality(items[i].getQuality()
-                                - items[i].getQuality());
+                            - items[i].getQuality());
                     }
                 } else {
-                    if (items[i].getQuality() < 50) {
-                        items[i].setQuality(items[i].getQuality() + 1);
-                    }
+                    increaseQualityByOne(i);
                 }
             }
+
         }
-}
+    }
+
+    public void increaseQualityByOne(int i){
+        if(items[i].getQuality() < 50){
+            items[i].setQuality(items[i].getQuality() + 1);
+        }
+    }
+
+    public void increaseQualityForBackstagePasses(int i){
+        if(items[i].getSellIn() < 11) {
+            increaseQualityByOne(i);
+        } 
+        if(items[i].getSellIn() < 6){
+            increaseQualityByOne(i);
+        }
+    }
 }