Vector List

import java.util.Scanner;
import java.util.Vector;

public class VectorList {
    public static void main(String[] args) {
        Scanner input= new Scanner(System.in);
        int p=0;
        String addData;
        Vector data=new Vector();
        do{
            enter();
            System.out.println("Data Vector");
            System.out.println("============");
            System.out.println("Size : "+data.size());
            System.out.println("============");
            System.out.println("1. Add");
            System.out.println("2. View");
            System.out.println("3. Remove");
            System.out.println("4. Exit");
            System.out.print("Masukan Pilihan : ");
            p=input.nextInt();
            input.nextLine();
            switch(p){
                case 1:
                    enter();
                    System.out.print("Masukan Data : ");
                    data.add(addData=input.nextLine());
                    System.out.println("Sukses Input Data");
                    input.nextLine();
                    break;
                case 2:
                    enter();
                    if(data.isEmpty())
                        System.out.println("Belum ada data");
                    else
                        System.out.println("List data = "+data);
                    input.nextLine();
                    break;
                case 3:
                    enter();
                    if(data.isEmpty())
                        System.out.println("Belum ada data");
                    else {
                        System.out.println("List data = "+data);
                        System.out.print("Masukan data yang ingin di hapus : ");
                        addData=input.nextLine();
                        if(data.contains(addData)){
                            data.remove(addData);
                            System.out.println("Sukses Menghapus <"+addData+">");
                        }
                        else
                            System.out.println("Tidak ada data");
                    }
                    input.nextLine();
                    break;
                case 4:
                    System.out.println(" ");
                    System.out.println("Closing Program...");
                    System.out.println("<Press any key to continue>");
                    input.nextLine();
                    break;
            }
        }while(p!=4);

    }

    public static void enter(){
        for (int i = 0; i < 25; i++) {
            System.out.println(" ");
        }
    }

}