How to create Traingle using alphabet in java

Please see this sample code:

public class TraingleAphabet {
    public static void main(String[] args) {
        for(char i='M',increment ='N';i<=increment;i--,increment++){
            if(increment>'Z' && i< 'A')
                break;
            for(char j=i;j<=increment;j++)
                System.out.print(j);
            System.out.println();
        }
    }
}







Result:

MN
LMNO
KLMNOP
JKLMNOPQ
IJKLMNOPQR
HIJKLMNOPQRS
GHIJKLMNOPQRST
FGHIJKLMNOPQRSTU
EFGHIJKLMNOPQRSTUV
DEFGHIJKLMNOPQRSTUVW
CDEFGHIJKLMNOPQRSTUVWX
BCDEFGHIJKLMNOPQRSTUVWXY
ABCDEFGHIJKLMNOPQRSTUVWXYZ