BAEL 1861 (#4913)

* BAEL-1861 Replaced real tests with demo test "placeholders"

* BAEL-1861 Moved code from new module into existing ones

* BAEL-1861 Renamed main() classes to not violate PMD rules

testing-modules/runjunitfromjava/src/main/java/com/baeldung/junit/runfromjava/listnode/ListNode.java

@@ -1,41 +0,0 @@
-package com.baeldung.junit.runfromjava.listnode;
-
-public class ListNode {
-    private int value;
-    private ListNode next;
-
-    public ListNode(int v) {
-        value = v;
-    }
-
-    public ListNode(int v, ListNode next) {
-        value = v;
-        this.next = next;
-    }
-
-    public int getValue() {
-        return value;
-    }
-
-    public ListNode getNext() {
-        return next;
-    }
-
-    public void setNext(ListNode next) {
-        this.next = next;
-    }
-
-    public String toString() {
-        String result = "";
-        ListNode tmp = this;
-
-        while (tmp.next != null) {
-            result += tmp.value + "->";
-            tmp = tmp.next;
-        }
-
-        result += tmp.value;
-
-        return result.toString();
-    }
-}

testing-modules/runjunitfromjava/src/main/java/com/baeldung/junit/runfromjava/listnode/MergeLists.java

@@ -1,22 +0,0 @@
-package com.baeldung.junit.runfromjava.listnode;
-
-public class MergeLists {
-
-    public ListNode merge(ListNode list1, ListNode list2) {
-
-        if (list1 == null) {
-            return list2;
-        }
-        if (list2 == null) {
-            return list1;
-        }
-
-        if (list1.getValue() <= list2.getValue()) {
-            list1.setNext(merge(list1.getNext(), list2));
-            return list1;
-        } else {
-            list2.setNext(merge(list2.getNext(), list1));
-            return list2;
-        }
-    }
-}

testing-modules/runjunitfromjava/src/main/java/com/baeldung/junit/runfromjava/listnode/RemovedNthElement.java

@@ -1,26 +0,0 @@
-package com.baeldung.junit.runfromjava.listnode;
-
-public class RemovedNthElement {
-    public ListNode removeNthFromEnd(ListNode head, int n) {
-
-        ListNode start = new ListNode(0);
-        start.setNext(head);
-
-        ListNode fast = start;
-        ListNode slow = start;
-
-        for (int i = 0; i < n + 1 && fast != null; i++) {
-            fast = fast.getNext();
-        }
-
-        while (fast != null) {
-            fast = fast.getNext();
-            slow = slow.getNext();
-        }
-
-        slow.setNext(slow.getNext()
-            .getNext());
-
-        return start.getNext();
-    }
-}

testing-modules/runjunitfromjava/src/main/java/com/baeldung/junit/runfromjava/listnode/RotateList.java

@@ -1,30 +0,0 @@
-package com.baeldung.junit.runfromjava.listnode;
-
-public class RotateList {
-    public ListNode rotateRight(ListNode list, int n) {
-
-        if (list == null || list.getNext() == null) {
-            return list;
-        }
-
-        ListNode tmpList = new ListNode(0);
-        tmpList.setNext(list);
-        ListNode fast = tmpList;
-        ListNode slow = tmpList;
-
-        int listLength;
-        for (listLength = 0; fast.getNext() != null; listLength++) {
-            fast = fast.getNext();
-        }
-
-        for (int j = listLength - n % listLength; j > 0; j--) {
-            slow = slow.getNext();
-        }
-
-        fast.setNext(tmpList.getNext());
-        tmpList.setNext(slow.getNext());
-        slow.setNext(null);
-
-        return tmpList.getNext();
-    }
-}

testing-modules/runjunitfromjava/src/main/java/com/baeldung/junit/runfromjava/listnode/SwapNodes.java

@@ -1,33 +0,0 @@
-package com.baeldung.junit.runfromjava.listnode;
-
-public class SwapNodes {
-    public ListNode swapPairs(ListNode listHead) {
-
-        ListNode result = new ListNode(0);
-        result.setNext(listHead);
-
-        ListNode current = result;
-
-        while (current.getNext() != null && current
-          .getNext()
-          .getNext() != null) {
-
-            ListNode first = current.getNext();
-            ListNode second = current
-              .getNext()
-              .getNext();
-
-            first.setNext(second.getNext());
-            current.setNext(second);
-            current
-              .getNext()
-              .setNext(first);
-
-            current = current
-              .getNext()
-              .getNext();
-        }
-
-        return result.getNext();
-    }
-}