Thread: new to java.... having a hard time trying to read code

Time to get out a piece of paper and a pencil. Write out the values of each variable and array index, and cross them out and rewrite them as they change.

Alternatively, you could also run this through a debugger.

Originally Posted by Newbie_96

I am studying but can't figure out what the outcome of this code will be... If you answer can you please explain what the code is saying.

final int sub = 12;
int [ ] x =  new int [sub];
int y = 20;
for(int i = 0;  i < sub; i++)
{
   x[i] = y;
    y+ = 5;
}

the meaning of that code is
1st line : you make an variable sub that have value 12
2nd line : you make an Array x with lengt alocation 12
3rd line : you make a variable y that have value 20
4th-8th line : loop for fill the value of array x for 12x loop.,.

Note : y+=5 have same meaning with y=y+5
Array started with 0 indeks


so that if you run this program in main method

public class tryAray
{
   public static void main(String args [])
   {
       final int sub = 12;
        int [ ] x =  new int [sub];
        int y = 20;
        for(int i = 0;  i < sub; i++)
        {
             x[i] = y;
             y+ = 5;
             System.out.println("X ["+i+"]= "+x[i]);
        }
     }
}