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import javax.sound.midi.Soundbank; import java.time.LocalDateTime; import java.time.format.DateTimeFormatter; import java.util.ArrayList; import java.util.HashMap; import java.util.Scanner; public class Main { static ArrayList<user> users = new ArrayList<>(); public static ArrayList<String> splitaval(String a) { ArrayList<String> javab = new ArrayList<>(); for (int i = 0; i < a.length(); i++) { if (a.charAt(i) == ' ') { javab.add(a.substring(0, i)); javab.add(a.substring(i + 1, a.length() - 1)); } } return javab; } public static void signup(String a) { a = a.substring(7, a.length()); String name = splitaval(a).get(0); String password = splitaval(a).get(1); user newuser = new user(name, password, 0.0); users.add(newuser); } public static int checklogin(String a, String b) { for (int i = 0; i < users.size(); i++) { if (users.get(i).name.equals(a)) { if (users.get(i).password.equals(b)) { return i; } return -1; } } return -2; } public static void login(int userlocate){ user activeuser = users.get(userlocate); Scanner scan = new Scanner(System.in); while (true) { String a = scan.nextLine(); if (a.equals("1")) { System.out.println(activeuser.balance); } if (a.equals("2")) { if (activeuser.history.size() == 0) { System.out.println("No History"); continue; } ArrayList<tara> mova = activeuser.history; for (int i = 0; i < mova.size(); i++) { tara taramova = mova.get(i); if (taramova.type.equals("deposit")) { System.out.println("deposit" + ':' + ' ' + taramova.balance + " by " + taramova.first + " in " + '(' + taramova.date + ')'); } else if (taramova.type.equals("withdraw")) { System.out.println("withdraw" + ':' + ' ' + taramova.balance + " in " + '(' + taramova.date + ')'); } else if (taramova.type.equals("transfer")) { System.out.println("transfer" + ':' + ' ' + taramova.balance + "to" + taramova.first + " in " + '(' + taramova.date + ')'); } } } if (a.equals("3")) { System.out.println("Amount?"); double v = scan.nextInt(); scan.nextLine(); activeuser.balance = activeuser.balance + v; tara newtara = new tara("deposit", v, "System"); activeuser.history.add(newtara); users.set(userlocate, activeuser); } if (a.equals("4")) { System.out.println("Amount?"); double v = scan.nextInt(); scan.nextLine(); if (activeuser.balance < v) { System.out.println("Not enough balance"); continue; } activeuser.balance = activeuser.balance - v; tara newtara = new tara("withdraw", -v, "System"); activeuser.history.add(newtara); users.set(userlocate, activeuser); } if (a.equals("5")) { System.out.println("Your target username?"); String a5 = scan.nextLine(); if (finduserlocation(a5) == -1) { System.out.println("This account does not exist."); continue; } user activeuser2 = users.get(finduserlocation(a5)); System.out.println("Amount?"); double v5 = scan.nextInt(); scan.nextLine(); if (activeuser.balance < v5) { System.out.println("Not enough balance"); continue; } activeuser.balance = activeuser.balance - v5; activeuser2.balance = activeuser2.balance + v5; tara newtara5 = new tara("transfer", -v5, a5); tara newtara52 = new tara("deposit", v5, activeuser.name); activeuser.history.add(newtara5); activeuser2.history.add(newtara52); users.set(userlocate, activeuser); users.set(finduserlocation(a5), activeuser2); } if (a.equals("6")) break; else System.out.println("Wrong command"); } } public static int finduserlocation(String a) { for (int i = 0; i < users.size(); i++) { if (users.get(i).name.equals(a)) { return i; } } return -1; } public static void main(String[] args) { Scanner scan = new Scanner(System.in); while (true) { String a = scan.nextLine(); String b = a.substring(0, 5); String c = a.substring(0, 6); if (c.equals("signup")) { signup(a); continue; } if (b.equals("login")) { a = a.substring(6, a.length()); String name = splitaval(a).get(0); String password = splitaval(a).get(1); if (checklogin(name, password) == -1) { System.out.println("wrong password"); } else if (checklogin(name, password) == -2) { System.out.println("wrong username"); } else { int userlocate = checklogin(name, password); login(userlocate); } } } } }
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