Add example for get an index of element from linkedlist blog

Author: gauravkukade

collections/linkedlist/get-an-index-of-element-of-linkedlist/LinkedListIndexOf.java

@@ -0,0 +1,38 @@
+package com.gaurav.ExProject.LinkedList;
+
+import java.util.LinkedList;
+
+/**
+ * A Java program to get the first index of the element from
+ * the linkedlist using indexOf(Object o) method.
+ * 
+ * @author coderolls.com
+ */
+public class LinkedListIndexOf {
+
+	public static void main(String[] args) {
+		
+		LinkedList<String> linkedList = new LinkedList<String>();
+		linkedList.add("PepsiCo");
+		linkedList.add("DrPepper");
+		linkedList.add("GoldSpot");
+		linkedList.add("GoldSpot");
+		linkedList.add("CocaCola");
+		linkedList.add("Moxie");
+		linkedList.add("GoldSpot");
+		linkedList.add("Moxie");
+		
+		System.out.println("LinkedList: ");
+		System.out.println(linkedList);
+		
+		// get first index of GoldSpot
+		int index = linkedList.indexOf("GoldSpot"); // 2
+		
+		System.out.println("\nIndex of the GoldSpot in linkedList is: "+ index);
+		
+		// get first index of Moxie
+		int indexMoxie = linkedList.indexOf("Moxie"); // 5
+		
+		System.out.println("\nIndex of the Moxie in linkedList is: "+ indexMoxie);
+	}
+}

collections/linkedlist/get-an-index-of-element-of-linkedlist/LinkedListLastIndexOf.java

@@ -0,0 +1,38 @@
+package com.gaurav.ExProject.LinkedList;
+
+import java.util.LinkedList;
+
+/**
+ * A Java program to get the last index of the element from
+ * the linkedlist using lastIndexOf(Object o) method.
+ * 
+ * @author coderolls.com
+ */
+public class LinkedListLastIndexOf {
+
+	public static void main(String[] args) {
+		
+		LinkedList<String> linkedList = new LinkedList<String>();
+		linkedList.add("PepsiCo");
+		linkedList.add("DrPepper");
+		linkedList.add("GoldSpot");
+		linkedList.add("GoldSpot");
+		linkedList.add("CocaCola");
+		linkedList.add("Moxie");
+		linkedList.add("GoldSpot");
+		linkedList.add("Moxie");
+		
+		System.out.println("LinkedList: ");
+		System.out.println(linkedList);
+		
+		// get first index of GoldSpot
+		int index = linkedList.lastIndexOf("GoldSpot"); // 6
+		
+		System.out.println("\nIndex of the GoldSpot in linkedList is: "+ index);
+		
+		// get first index of Moxie
+		int indexMoxie = linkedList.lastIndexOf("Moxie"); // 7
+		
+		System.out.println("\nIndex of the Moxie in linkedList is: "+ indexMoxie);
+	}
+}