From 964e6a0afb418173482761965033929e439a0cb6 Mon Sep 17 00:00:00 2001
From: Jean-Luc Makiola <business@jeanlucmakiola.de>
Date: Sat, 23 May 2026 22:08:01 +0200
Subject: [PATCH] uebung_02: complete IntArrayList with get, size, sort, remove
 and finish add

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 uebung_02/src/util/IntArrayList.java | 37 +++++++++++++++++++++++++++-
 1 file changed, 36 insertions(+), 1 deletion(-)

diff --git a/uebung_02/src/util/IntArrayList.java b/uebung_02/src/util/IntArrayList.java
index e705a9d..9f75c7c 100644
--- a/uebung_02/src/util/IntArrayList.java
+++ b/uebung_02/src/util/IntArrayList.java
@@ -14,7 +14,42 @@ public class IntArrayList {
         }
         else {
             int[] arrTemp = new int[lenght*2];
-            
+            System.arraycopy(arr, 0, arrTemp, 0, lenght);
+            arr = arrTemp;
+            lenght = lenght * 2;
+            arr[lastUnfilledPos] = a;
+            lastUnfilledPos ++;
         }
     }
+
+    public int get(int pos){
+        if (pos < 0 || pos >= lastUnfilledPos){
+            return -1;
+        }
+        return arr[pos];
+    }
+
+    public int size(){
+        return lastUnfilledPos;
+    }
+
+    public void sort(){
+        int[] view = new int[lastUnfilledPos];
+        System.arraycopy(arr, 0, view, 0, lastUnfilledPos);
+        Sorter sorter = new Sorter();
+        sorter.mergeSort(view);
+        System.arraycopy(view, 0, arr, 0, lastUnfilledPos);
+    }
+
+    public int remove(int pos){
+        if (pos < 0 || pos >= lastUnfilledPos){
+            return -1;
+        }
+        int removed = arr[pos];
+        for (int i = pos; i < lastUnfilledPos -1; i++){
+            arr[i] = arr[i+1];
+        }
+        lastUnfilledPos --;
+        return removed;
+    }
 }