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LinkedList13b.java

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+//program 13b
+import java.util.*;
+public class LinkedList13b
+{
+	public static void main(String[] args)
+	{
+		LinkedList<String> name1=new LinkedList<String>();
+		name1.add("Misa");
+		name1.add("Aditya");
+		name1.add("Aisha");
+		name1.add("Aditya");
+		Iterator<String> itr=name1.iterator();
+		while(itr.hasNext())
+		{
+			System.out.println(itr.next());
+		}
+	}
+}

Stack15.java

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+//15. write a java code to demonstrate stack
+import java.util.*;
+public class Stack15
+{
+	public static void main(String[] args)
+	{
+		Stack<String> food = new Stack<String>();
+		food.push("\nButter Chicken");
+		food.push("Dal Makhani");
+		food.push("Kadhai Paneer");
+		food.push("Prawns Koliwada");
+		food.push("Crab Soup");
+		Iterator<String> itr = food.iterator();
+		while(itr.hasNext())
+		{
+			System.out.println(itr.next());
+		}
+		String Food = food.peek();
+		System.out.println("\nThe Top food item is: " +Food);
+
+		food.pop();
+		System.out.println("\nAfter Pop:");
+		Iterator<String> newItr = food.iterator();
+		while(newItr.hasNext())
+		{
+			System.out.println(newItr.next());
+		}
+	}
+}
+
+