Added till 18th

LinkedHash17a.java

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+// 17a) Write a java code to demonstrate LinkedHashSet
+
+import java.util.*;
+public class LinkedHash17a{
+	public static void main(String args[]){
+		LinkedHashSet<String> pc = new LinkedHashSet<String>();
+		pc.add("RAM stick");
+		pc.add("GPU");
+		pc.add("RAM stick");
+		pc.add("Processor");
+		Iterator<String> itr = pc.iterator();
+		while(itr.hasNext()){
+			System.out.println(itr.next());
+		}
+	}
+}

LinkedHash17b.java

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+import java.util.*;
+public class LinkedHash17b{
+	public static void main(String args[]){
+		LinkedHashSet<String> pc = new LinkedHashSet<String>();
+		pc.add("RAM stick");
+		pc.add("GPU");
+		pc.add("");
+		pc.add("RAM stick");
+		pc.add("Processor");
+		Iterator<String> itr = pc.iterator();
+		while(itr.hasNext()){
+			System.out.println(itr.next());
+		}
+	}
+}

LinkedHash17c.java

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+import java.util.*;
+public class LinkedHash17c{
+	public static void main(String args[]){
+		LinkedHashSet<String> pc = new LinkedHashSet<String>();
+		pc.add("RAM stick");
+		pc.add("GPU");
+		pc.add(null);
+		pc.add("RAM stick");
+		pc.add("Processor");
+		Iterator<String> itr = pc.iterator();
+		while(itr.hasNext()){
+			System.out.println(itr.next());
+		}
+	}
+}

LinkedList13b.java

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

LinkedListDemo.java

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+// 13. write a java program to demonstrate Linked List
+
+import java.util.LinkedList;
+
+public class LinkedListDemo {
+    public static void main(String[] args) {
+
+        LinkedList<String> linkedList = new LinkedList<>();
+
+        linkedList.add("Element A");
+        linkedList.add("Element B");
+        linkedList.add("Element C");
+
+        System.out.println("Element at index 0: " + linkedList.get(0));
+        System.out.println("Element at index 1: " + linkedList.get(1));
+        System.out.println("Element at index 2: " + linkedList.get(2));
+
+        System.out.println("LinkedList Elements:");
+        for (String element : linkedList) {
+            System.out.println(element);
+        }
+
+        linkedList.remove("Element B");
+        System.out.println("Size of linked list after removal: " + linkedList.size());
+    }
+}

Stack15.java

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+// write a java code to demonstrate Stack
+import java.util.*;
+public class Stack15 {
+	public static void main(String ar[]){
+		Stack<String> elec = new Stack<String>();
+		elec.push("fan");
+		elec.push("air conditioner");
+		elec.push("computer");
+		elec.push("iron");
+		elec.push("lights");
+		
+		Iterator<String> itr = elec.iterator();
+		while(itr.hasNext()){
+			System.out.println(itr.next());
+		}
+		String topOfStack = elec.peek();
+		System.out.println("The top electrical item is : " + topOfStack);
+		elec.pop();
+		System.out.println("After Pop : ");
+		Iterator<String> newItr = elec.iterator();
+		while(newItr.hasNext()){
+			System.out.println(newItr.next());
+		}
+	}
+}

TreeSet18a.java

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+// write a java code to demonstrate treeset
+import java.util.*;
+public class TreeSet18a {
+	public static void main(String args[]){
+		TreeSet<String> home = new TreeSet<String>();
+		home.add("Hall Room");
+		home.add("Bed Room");
+		home.add("Bed Room");
+		home.add("Kitchen");
+		Iterator<String> itr = home.iterator();
+		while(itr.hasNext()){
+			System.out.println(itr.next());
+		}
+	}
+}

TreeSet18b.java

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+// write a java code to demonstrate treeset
+import java.util.*;
+public class TreeSet18b {
+	public static void main(String args[]){
+		TreeSet<String> home = new TreeSet<String>();
+		home.add("Hall Room");
+		home.add("Bed Room");
+		home.add(null);
+		home.add("Bed Room");
+		home.add("Kitchen");
+		Iterator<String> itr = home.iterator();
+		while(itr.hasNext()){
+			System.out.println(itr.next());
+		}
+	}
+}

Vector14a.java

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+// write a java code to demonstrate vector (a)
+
+import java.util.*;
+public class Vector14a {
+	public static void main(String ar[]){
+		Vector<String> names = new Vector<String>();
+		names.add("Misa");
+		names.add("Aditya");
+		names.add("Ashish");
+		names.add("Garima");
+		Iterator<String> itr = names.iterator();
+		while(itr.hasNext()){
+			System.out.println(itr.next());
+		}
+	}
+}

Vector14b.java

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+import java.util.Vector;
+public class Vector14b {
+	public static void main(String args[]){
+		Vector<String> itemList = new Vector<String>();
+		itemList.add("Item A");
+		itemList.add("Item B");
+		itemList.add("Item C");
+		
+		System.out.println("Item at index 0: " + itemList.get(0));
+		System.out.println("Item at index 1: " + itemList.get(1));
+		System.out.println("Item at index 2: " + itemList.get(2));
+	
+		System.out.println("Items in Vector list: ");
+		for(String item: itemList) {
+			System.out.println(item);
+		}
+		
+		itemList.remove("Item B");
+		System.out.println("Size of Vector after removal: " + itemList.size());
+	}
+}
+

hashSet16.java

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+// Write a java code to demonstrate hashSet
+
+import java.util.*;
+public class hashSet16 {
+	public static void main(String args[]){
+		HashSet<String> setName = new HashSet<String>();
+		setName.add("Misa");
+		setName.add("Aditya");
+		setName.add("Misa");
+		setName.add("Ravi");
+			
+		Iterator<String> itr = setName.iterator();
+		while(itr.hasNext()){
+			System.out.println(itr.next());		
+		}
+	}
+}
+