JAVA SAYI OYUNU

 
  public static void main(String[] args) { 
   
  		int sayi_turet, sayi; 
  		int[] answerVisited; 
  		int[] guessVisited; 
  		int flag = 1; 
   
  		int sond[], sond2[]; 
  		sond = new int[4]; 
  		sond2 = new int[4]; 
  		Scanner kul_sayi = new Scanner(System.in); 
  		sayi_turet = sayi_turet(); 
   
  		sond[0] = sayi_turet / 1000; 
  		sond[1] = (sayi_turet % 1000) / 100; 
  		sond[2] = (sayi_turet % 100) / 10; 
  		sond[3] = (sayi_turet % 10); 
   
  		while (flag != 0) { 
  			System.out.println("sayı girişi"); 
  			sayi = kul_sayi.nextInt(); 
  			 
  			if (sayi < 1000 || sayi > 9999) { 
  				System.out.println("hatalı gırıs"); 
  				System.exit(0); 
  			} 
   
  			else { 
  				sond2[0] = sayi / 1000; 
  				sond2[1] = (sayi % 1000) / 100; 
  				sond2[2] = (sayi % 100) / 10; 
  				sond2[3] = (sayi % 10); 
  				 
  				answerVisited = new int[]{0, 0, 0, 0}; 
  				guessVisited = new int[]{0, 0, 0, 0}; 
  				 
  				for (int i = 0; i < sond.length; i++) { 
  					for (int j = 0; j < sond2.length; j++) { 
  						if(answerVisited(i) == 0 && guessVisited[j] == 0 && sond(i) == sond2[j]) { 
  							if(i == j) { 
  								answerVisited(i) = 1; 
  								guessVisited[j] = 1; 
  								System.out.println("*"); 
  							} 
  							else if(sond(i) != sond2(i)){ 
  								answerVisited(i) = 1; 
  								guessVisited[j] = 1; 
  								System.out.println("?"); 
  							} 
  						} 
  					} 
  				} 
  				 
  				flag = 0; 
  				for(int i = 0; i < answerVisited.length; i++) { 
  					if(answerVisited(i) != 1 || guessVisited(i) != 1) { 
  						flag = 1; 
  					} 
  				} 
  				 
  				if(flag == 0) { 
  					System.out.println("Tebrikler kazandiniz!"); 
  				} 
  			} 
  		} 
   
  		kul_sayi.close(); 
  	}