Ich will einen Passwort Generator bauen aber wenn ich eine Anzahl an Passwortlänge eingebe kommt z.B.: nur Zahlen.
Hier ist der Code:
Hier ist der Code:
Java:
import java.util.Random;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc =new Scanner(System.in);
System.out.printf("Geben Sie die Länge des Passwortes ein: ");
int anz= sc.nextInt();
Random r = new Random();
int randz = 1 + r.nextInt(4);
for (int i=0;i<anz;i++) {
switch (randz){
case 1:
Random r1 = new Random();
int randz1 = 1 + r1.nextInt(9);
switch (randz1) {
case 1:
System.out.print("1");
break;
case 2:
System.out.print("2");
break;
case 3:
System.out.print("3");
break;
case 4:
System.out.print("4");
break;
case 5:
System.out.print("5");
break;
case 6:
System.out.print("6");
break;
case 7:
System.out.print("7");
break;
case 8:
System.out.print("8");
break;
default:
System.out.print("9");
}
break;
case 2:
Random r2 = new Random();
int randz2 = 1 + r2.nextInt(26);
switch (randz2) {
case 1:
System.out.print("a");
break;
case 2:
System.out.print("b");
break;
case 3:
System.out.print("c");
break;
case 4:
System.out.print("d");
break;
case 5:
System.out.print("e");
break;
case 6:
System.out.print("f");
break;
case 7:
System.out.print("g");
break;
case 8:
System.out.print("h");
break;
case 9:
System.out.print("i");
break;
case 10:
System.out.print("j");
break;
case 11:
System.out.print("k");
break;
case 12:
System.out.print("l");
break;
case 13:
System.out.print("m");
break;
case 14:
System.out.print("n");
break;
case 15:
System.out.print("o");
break;
case 16:
System.out.print("p");
break;
case 17:
System.out.print("q");
break;
case 18:
System.out.print("r");
break;
case 19:
System.out.print("s");
break;
case 20:
System.out.print("t");
break;
case 21:
System.out.print("u");
break;
case 22:
System.out.print("v");
break;
case 23:
System.out.print("w");
break;
case 24:
System.out.print("x");
break;
case 25:
System.out.print("y");
break;
default:
System.out.print("z");
}
break;
case 3:
Random r3 = new Random();
int randz3 = 1 + r3.nextInt(26);
switch (randz3) {
case 1:
System.out.print("A");
break;
case 2:
System.out.print("B");
break;
case 3:
System.out.print("C");
break;
case 4:
System.out.print("D");
break;
case 5:
System.out.print("E");
break;
case 6:
System.out.print("F");
break;
case 7:
System.out.print("G");
break;
case 8:
System.out.print("H");
break;
case 9:
System.out.print("I");
break;
case 10:
System.out.print("J");
break;
case 11:
System.out.print("K");
break;
case 12:
System.out.print("L");
break;
case 13:
System.out.print("M");
break;
case 14:
System.out.print("N");
break;
case 15:
System.out.print("O");
break;
case 16:
System.out.print("P");
break;
case 17:
System.out.print("Q");
break;
case 18:
System.out.print("R");
break;
case 19:
System.out.print("S");
break;
case 20:
System.out.print("T");
break;
case 21:
System.out.print("U");
break;
case 22:
System.out.print("V");
break;
case 23:
System.out.print("W");
break;
case 24:
System.out.print("X");
break;
case 25:
System.out.print("Y");
break;
default:
System.out.print("Z");
}
break;
case 4:
Random r4 = new Random();
int rand4 = 1 + r4.nextInt(3);
switch (rand4) {
case 1:
System.out.print(".");
break;
case 2:
System.out.print("!");
break;
case 3:
System.out.print("?");
break;
}
}
}
}
}
