Question

I’ve created an arraylist in java which shows a bunch of stuff.The program runs the way i want but i’ve a little inconvenience.at the end of the loop below it displays this : A@

ArrayList umudo = new ArrayList();
   while(true){
    int n2 = readInt("Enter the block: ");   
       int le=dyibul.modulo(n2, de, n);


       if(dyibul.numdigits(le)==3){
           int me= (le/100);
           int ne=  le-me*100;
           char y = (char) (me+65);
           char z = (char) (ne+65);
           String bu=(y+""+z);
           umudo.add(bu);

       }else{
           int me= (le/100);
           int ne=  le-me*100;
           char y = (char) (me+65);
           char z = (char) (ne+65);
           String bu2=(y+""+z);

           umudo.add(bu2);
       }


       if(n2==-1){
           break;
       }

       }
        for(int j=0;j<umudo.size();j++){

           print(umudo.get(j));

       }

I suppose it’s something to do with the place it’s stored or sth.But i don’t want it to appear.Can you give me a clue?

Edit:umudo is the name of my ArrayList.Java compiler isn’t giving any red lined error alert.and my ArrayList consists of Strings.This is the final step of my RSA decoding/hacking homework.

Answer 1

It is unclear what you are expecting the output to be.

However, this is most likely wrong:

   if(dyibul.numdigits(le)==3){
       int me= (le/100);
       int ne=  le-me*100;
       char y = (char) (me+65);
       char z = (char) (ne+65);
       String bu=(y+""+z);
       umudo.add(bu);
   }else{
       int me= (le/100);
       int ne=  le-me*100;
       char y = (char) (me+65);
       char z = (char) (ne+65);
       String bu2=(y+""+z);
       umudo.add(bu2);
   }

The code in the then and else blocks is identical.