Java biometric-determine if the base has a continuous sequence of repeats

Repetition of four successive bases

It is not possible to determine if multiple bases are duplicated.

public class testconsecutivebases{  public static void main  (String[]  args)  {    java.util.scanner input = new java.util.scanner ( system.in);         system.out.print ("enter the number  of values:  ");     string dnaseq = input.nextline ();         if  (Isconsecutivefour (DNASEQ))        System.out.println ("the series has consecutive four bases");     Else    system.out.println ("The series has no consecutive four  bases ");   }  public static boolean isconsecutivefour (String T)  { char[] dt = t.tochararray ();       for  ( int i = 0; i < dt.length - 3; i++)  {      boolean  isEqual = true;               for  (int j = i; j < i + 3; j++)  {         if  (dt[j] !=  (dt[j + 1))  {           isEqual = false;           break;        }       }           if  (isequal)  return  true;    }        return false;  }}

Java biometric-determine if the base has a continuous sequence of repeats