Program Linked List

 Linked list

Berikut merupakan kode implementasi dari linked list.

	import java.util.LinkedList;
	import java.util.Scanner;
	import java.util.InputMismatchException;
	**
	* This class represents linkedlist data structure
	*
	* @author Nabila Zakiyah
	* @version 1.0
	* */
	public class JavaLinkedList {
	private static LinkedList<String> dataStorage = new LinkedList<String>();
	private static Scanner extracted() {
	return new Scanner(System.in);
	}
	private static void displayData(){
	System.out.println("\nData dalam List: " + dataStorage);
	System.out.println("Total Data : " + dataStorage.size());
	}
	private static void addData() {
	System.out.print("Masukkan Data: ");
	String tempData = extracted().nextLine();
	dataStorage.add(tempData);
	displayData();
	}
	private static void addDataToFirst() {
	System.out.print("Masukkan Data: ");
	String tempData = extracted().nextLine();
	dataStorage.addFirst(tempData);
	displayData();
	}
	private static void addDataToLast() {
	System.out.print("Masukkan Data: ");
	String tempData = extracted().nextLine();
	dataStorage.addLast(tempData);
	displayData();
	}
	private static void addDataAtLocation() {
	boolean status = true;
	int indexData = 0;
	displayData();
	while(status) {
	System.out.print("Pilih Index Data yang ingin disisipi data: [0-" + (dataStorage.size() - 1) + "]: ");
	try {
	status = false;
	indexData = extracted().nextInt();
	}
	catch(InputMismatchException e) {
	System.out.println("Data harus berupa Angka!");
	status = true;
	}
	}
	System.out.print("Data yang ingin disisipkan pada index data ke- " + indexData + ": ");
	String tempData = extracted().nextLine();
	dataStorage.add(indexData, tempData);
	displayData();
	}
	private static boolean searchData(String data) {
	return dataStorage.contains(data);
	}
	private static void removeData() {
	boolean status = true;
	int indexData = 0;
	displayData();
	while(status) {
	System.out.print("Pilih Index Data yang ingin dihapus: [0-" + (dataStorage.size() - 1) + "]: ");
	try {
	status = false;
	indexData = extracted().nextInt();
	}
	catch(InputMismatchException e) {
	System.out.println("Data harus berupa Angka!");
	status = true;
	}
	}
	dataStorage.remove(indexData);
	displayData();
	}
	private static void removeDataAtFirst() {
	dataStorage.removeFirst();
	displayData();
	}
	private static void removeDataAtLast() {
	dataStorage.removeLast();
	displayData();
	}
	private static void removeDataByContent() {
	displayData();
	System.out.print("Masukkan Data yang ingin dihapus: ");
	String data = extracted().nextLine();
	if(searchData(data)) {
	dataStorage.remove(data);
	}
	else {
	System.out.println("Anda memasukkan data yang tidak tersimpan di dalam list");
	}
	displayData();
	}
	private static void programExit() {
	System.exit(0);
	}
	private static void programTitle() {
	System.out.println("\nSimple Linked List Program");
	}
	private static void programSwitcher() {
	boolean status = true;
	int indexMenu = 0;
	while(status) {
	try {
	status = false;
	System.out.print("Pilih Menu [1~9]: ");
	indexMenu = extracted().nextInt();
	}
	catch(InputMismatchException e) {
	System.out.println("Masukan harus berupa Angka!");
	status = true;
	}
	}
	switch(indexMenu) {
	case 1: addData(); break;
	case 2: addDataToFirst(); break;
	case 3: addDataToLast(); break;
	case 4: addDataAtLocation(); break;
	case 5: removeData(); break;
	case 6: removeDataAtFirst(); break;
	case 7: removeDataAtLast(); break;
	case 8: removeDataByContent(); break;
	case 9: programTitle(); break;
	case 10: programExit(); break;
	}
	programMenu();
	}
	private static void programMenu() {
	System.out.println("\n.: PROGRAM MENU :."
	+ "\n 1. Add Data"
	+ "\n 2. Add Data at First"
	+ "\n 3. Add Data at Last"
	+ "\n 4. Add Data at N Index"
	+ "\n 5. Remove Data at N Index"
	+ "\n 6. Remove Data at First"
	+ "\n 7. Remove Data at Last"
	+ "\n 8. Remove Data by Data Content"
	+ "\n 9. About Program"
	+ "\n10. Program Exit");
	programSwitcher();
	}
	public static void main(String[] args) {
	programTitle();
	programMenu();
	}
	}

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Output:

	Simple Linked List Program
	.: PROGRAM MENU :.
	1. Add Data
	2. Add Data at First
	3. Add Data at Last
	4. Add Data at N Index
	5. Remove Data at N Index
	6. Remove Data at First
	7. Remove Data at Last
	8. Remove Data by Data Content
	9. About Program
	10. Program Exit
	Pilih Menu [1~9]: 1
	Masukkan Data: 29
	Data dalam List: [29]
	Total Data : 1
	.: PROGRAM MENU :.
	1. Add Data
	2. Add Data at First
	3. Add Data at Last
	4. Add Data at N Index
	5. Remove Data at N Index
	6. Remove Data at First
	7. Remove Data at Last
	8. Remove Data by Data Content
	9. About Program
	10. Program Exit
	Pilih Menu [1~9]: 1
	Masukkan Data: 15
	Data dalam List: [29, 15]
	Total Data : 2
	.: PROGRAM MENU :.
	1. Add Data
	2. Add Data at First
	3. Add Data at Last
	4. Add Data at N Index
	5. Remove Data at N Index
	6. Remove Data at First
	7. Remove Data at Last
	8. Remove Data by Data Content
	9. About Program
	10. Program Exit
	Pilih Menu [1~9]: 1
	Masukkan Data: 9
	Data dalam List: [29, 15, 9]
	Total Data : 3
	.: PROGRAM MENU :.
	1. Add Data
	2. Add Data at First
	3. Add Data at Last
	4. Add Data at N Index
	5. Remove Data at N Index
	6. Remove Data at First
	7. Remove Data at Last
	8. Remove Data by Data Content
	9. About Program
	10. Program Exit
	Pilih Menu [1~9]: 2
	Masukkan Data: 5
	Data dalam List: [5, 29, 15, 9]
	Total Data : 4
	.: PROGRAM MENU :.
	1. Add Data
	2. Add Data at First
	3. Add Data at Last
	4. Add Data at N Index
	5. Remove Data at N Index
	6. Remove Data at First
	7. Remove Data at Last
	8. Remove Data by Data Content
	9. About Program
	10. Program Exit
	Pilih Menu [1~9]: 4
	Data dalam List: [5, 29, 15, 9]
	Total Data : 4
	Pilih Index Data yang ingin disisipi data: [0-3]: 3
	Data yang ingin disisipkan pada index data ke- 3: 7
	Data dalam List: [5, 29, 15, 7, 9]
	Total Data : 5
	.: PROGRAM MENU :.
	1. Add Data
	2. Add Data at First
	3. Add Data at Last
	4. Add Data at N Index
	5. Remove Data at N Index
	6. Remove Data at First
	7. Remove Data at Last
	8. Remove Data by Data Content
	9. About Program
	10. Program Exit
	Pilih Menu [1~9]: 7
	Data dalam List: [5, 29, 15, 7]
	Total Data : 4
	.: PROGRAM MENU :.
	1. Add Data
	2. Add Data at First
	3. Add Data at Last
	4. Add Data at N Index
	5. Remove Data at N Index
	6. Remove Data at First
	7. Remove Data at Last
	8. Remove Data by Data Content
	9. About Program
	10. Program Exit
	Pilih Menu [1~9]: 10

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