hacktoberfest Create HashMap6

HashMap6

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+// Java program to convert ArrayList
+// to HashMap
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.*;
+
+public class ArrayListExample {
+	public static void main(String[] args)
+	{
+		// ArrayList of string
+		ArrayList<String> languageList
+			= new ArrayList<>(Arrays.asList(
+				"Java", "C++", "Python", "PHP", "NodeJS"));
+
+		System.out.println(
+			"-------------ArrayList---------------");
+
+		// printing the ArrayList
+		for (String language : languageList) {
+
+			System.out.println(language);
+		}
+
+		System.out.println(
+			"--------------HashMap----------------");
+
+		// convertArrayListToHashMap() method directly
+		// converts ArrayList to HashMap
+		HashMap<String, Integer> languageMap
+			= convertArrayListToHashMap(languageList);
+
+
+		// printing the HashMap
+		for (Map.Entry<String, Integer> entry :
+			languageMap.entrySet()) {
+
+			System.out.println(entry.getKey() + " : "
+							+ entry.getValue());
+		}
+	}
+
+	private static HashMap<String, Integer>
+					convertArrayListToHashMap(ArrayList<String> arrayList)
+	{
+
+		LinkedHashMap<String, Integer> linkedHashMap
+								= new LinkedHashMap<>();
+
+		for (String str : arrayList) {
+
+			linkedHashMap.put(str, str.length());
+		}
+
+		return linkedHashMap;
+	}
+}