MainGame.java

import java.util.Scanner;

public class MainGame {
	public static void main(String[] args) {
		Status playerData = new Status();
		playerData.showData();
		showCommand();
		System.out.println("Input Command!");
		Scanner sc = new Scanner(System.in);
		int line = 0;
		while (sc.hasNext()) {
			String tmp = sc.nextLine();
			if (tmp.matches("[+-]?\\d*(\\.\\d+)?")) {
				line = Integer.parseInt(tmp);
			} else {
				line = 0;
			}
			switch (line) {
				case 1: {
					AddLV addlv = new AddLV();
					playerData.lv = addlv.addLv(playerData.lv);
				}
					break;
				case 2: {
					SubLV sublv = new SubLV();
					playerData.lv = sublv.sublv(playerData.lv);
				}
					break;
				case 3: {
					AddAtk addatk = new AddAtk();
					playerData.atk = addatk.addatk(playerData.atk);
				}
					break;
				case 4: {
					SubAtk subatk = new SubAtk();
					playerData.atk = subatk.subatk(playerData.atk);
				}
					break;
				case 5: {
					AddDef adddef = new AddDef();
					playerData.def = adddef.adddef(playerData.def);
				}
					break;
				case 6: {
					SubDef subdef = new SubDef();
					playerData.def = subdef.subdef(playerData.def);
				}
					break;
				case 7: {
					AddHP addhp = new AddHP();
					playerData.hp = addhp.addhp(playerData.hp);
				}
					break;
				case 8: {
					SubHP subhp = new SubHP();
					playerData.hp = subhp.subhp(playerData.hp);
				}
					break;
				case 9: {
					AddMP addmp = new AddMP();
					playerData.hp = addmp.addmp(playerData.mp);
				}
					break;
				case 10: {
					SubMP submp = new SubMP();
					playerData.mp = submp.submp(playerData.mp);
				}
					break;
				case 11: {
					AddLuk addluk = new AddLuk();
					playerData.luk = addluk.addLuk(playerData.luk);
				}
					break;
				case 12: {

					SubLuk subluk = new SubLuk();
					playerData.luk = subluk.subLuk(playerData.luk);
				}
					break;
				case 13: { // add kogure
							System.out.println("No operation");
					}
				default: {
					System.exit(0);
				}
					break;
			}
			playerData.showData();
			showCommand();
		}
		sc.close();
	}

	public static void showCommand() {
		System.out.println("---Command List---");
		System.out.println("1: Add Lv");
		System.out.println("2: Sub Lv");
		System.out.println("3: Add atk");
		System.out.println("4: Sub atk");
		System.out.println("5: Add def");
		System.out.println("6: Sub def");
		System.out.println("7: Add HP");
		System.out.println("8: Sub HP");
		System.out.println("9: Add MP");
		System.out.println("10: Sub MP");
		System.out.println("11: Add LUK");
		System.out.println("12: Sub LUK");
		System.out.println("13: No OP");
		System.out.println("other: close program");
		System.out.println("------------------");
	}
}