Check password validation, if it has recurring character more than twice.

checkPassword

package joe;

import java.util.*;
import java.lang.*;
import java.io.*;



class Check{

	static char temp1 = ' ', temp2 = ' ', temp3 = ' ', temp4 = ' ';
	static String temp5 = " ", temp6 = " ";

	public static String Check_pass(String passWord){

		for(int i = 0 ; i < passWord.length() - 3; i++){
			temp1 = passWord.charAt(i);
			temp2 = passWord.charAt(i+1);
			temp3 = passWord.charAt(i+2);
			temp4 = passWord.charAt(i+3);
			temp5 = passWord.substring(i,i+2);
			//System.out.println(temp5);
			temp6 = passWord.substring(i+2, i+4);
			//System.out.println(temp6);

			if (temp1 == temp2 || temp2 == temp3 || temp3 == temp4){
				return "reject";
			}
			else if (temp5.equals(temp6)){
				return "reject";
			}
			else {
				continue;				
			}

		}

		return "accept";
	}


}


public class HW3_20101062_3 {

	public static void main(String[] args){

		File file = new File("input3_5.txt");
		Scanner scin;
		String[] passwords = null;
		int count = 0; 
		if (file.exists()) {
			try {
				scin = new Scanner(file);
				count = scin.nextInt();
				passwords = new String[count];
				for (int i=0; i<count; i++) {
					passwords[i] = new String(scin.next());
				} 

			} catch (IOException e) {}


		}
		else {
			System.out.println("input.txt not exist!!");
		}

		for (int x = 0 ; x < count ; x++){
			System.out.println(passwords[x] + " : " +Check.Check_pass(passwords[x]));
		}

	}

}