Anpassung der AbstractSimpleList-Klasse

SimpleLinkedList/src/solution/AbstractSimpleList.java

@@ -2,42 +2,24 @@ package solution;
 
 import java.util.Collection;
 
-public class AbstractSimpleList<E> implements ISimpleList<E>{
+public abstract class AbstractSimpleList<E> implements ISimpleList<E> {
 
 	@Override
-	public int size() {
-		// TODO Auto-generated method stub
-		return 0;
-	}
-
-	@Override
-	public boolean add(E e) {
-		// TODO Auto-generated method stub
-		return false;
-	}
-
-	@Override
-	public boolean add(Collection c) {
-		// TODO Auto-generated method stub
-		return false;
-	}
-
-	@Override
-	public boolean contains(Object o) {
-		// TODO Auto-generated method stub
-		return false;
-	}
+	public boolean add(Collection<E> c) {
+		boolean temp = true;
+		for (E e : c) {
+			temp = temp && add(e);
+		}
 
-	@Override
-	public boolean remove(Object o) {
-		// TODO Auto-generated method stub
-		return false;
+		return temp;
 	}
 
 	@Override
 	public void forAll(ICommand<E> command) {
-		// TODO Auto-generated method stub
-		
+		if (command != null) {
+			for (int i = 0; i < size(); i++) {
+				command.execute(get(i));
+			}
+		}
 	}
-
 }