java - input validation using loop -

a loop in class not returning expected value. should return true when value entered in method equal 1 of values in area. when compile , run main method: "please enter id number checked" enter 2 "you entered number id" "565" "456" "342" "234" "237" "192" "237" "109" "278" "num u entered 2 true" "the value entered false" "press key continue . . ."

the "num u entered 2 true" line useless, , used testing. since 2 not equal of elements equal in array, im not sure why remain false.

here class.

public class account {   int[] anum = {565, 456, 342, 234, 237, 192, 237, 109, 278};   boolean flag = false;    public boolean achecker(int num)   {     for(int = 0; < anum.length; i++)     {       if(num == anum[i]);       {         system.out.println(anum[i]);         flag = true;       }     }      system.out.println("num u entered " + num + " " + flag);     return flag;   }  } 

here main method.

import java.math.*; import java.text.decimalformat; import java.io.*; import java.util.*;   public class labbookfiftythree {   public static void main(string[] args) {     scanner myinput = new scanner(system.in);     account myaccounts = new account();      int id = -1;     while (id < 0) {       system.out.println("please enter id number checked");       if (myinput.hasnextint()) {         system.out.println("you entered number id");         id = myinput.nextint();       } else if (myinput.hasnext()) {         system.out.println("please enter proper value");         myinput.next();       } else {         system.err.println("no more input");         system.exit(1);       }     }      system.out.println("the value entered " + myaccounts.achecker(id));   } } 

if(num == anum[i]); {     system.out.println(anum[i]);      flag = true; } 

is equivalent to

if(num == anum[i])     /* nothing @ */; {     system.out.println(anum[i]);      flag = true; } 

because of semicolon after if, system.out.println , flag = true not part of if statement. therefore performed whether or not if condition true.

delete last semicolon if line.