i have a question?help me

[ahmee]

here is my code below. i have question regarding my code.why we have taken "output" as string.is this because we have used concate sign in this expression
output+=value+" "; in the code if not plz tell me why??

int value;
String output="";
for(int i=1; i <=10 ; i++)
{
  value= 1+(int)(6* Math.random());
  output+=value+"";
  if(i%2==0){
    output+="\n";
  }
}

[TheServant]

Yes. It looks like you are to print your output variable, and so it is easier to be a string.

I don't know what:

output+=value+"";

means? I don't think you can add an int to a string like that? I may be wrong, but have you considered using an Integer instead, which allows you to utilize the .toString method. Second point is the +""? Why would you need to add an empty string?

Just confirming that you know that with output as a string it just (as you say) concatinates the value to the string and doesn't actually add (mathematically ) any values. If this is your goal, it makes sense that you declare it a String.

[Frinavale]

What are you trying to do in your code?
Please explain it by writing the code out in words/sentences to explain what you are doing on each line.

I don't even think that code will compile.

I do not understand what your question is exactly either.

-Frinny

[sixdonuts]

My guess is doing value+"" is someone's way of forcing value to be a string instead of an integer. What you can do is

output += Integer.toString(value)

[Dheeraj Joshi]

I don't even think that code will compile.

It compiles and runs properly.

My guess is doing value+"" is someone's way of forcing value to be a string instead of an integer. What you can do is

No it is not. If you are using + operator you need not to convert the non string value to string. The "" in OP's code has no significance.

Ok.

output+=value+"";

is same as

output=output+value+""

This is legal in Java. '+' operator can work between String and String,Integer, character,doubl e,float.

'+' operator does convert the non string value into its corresponding string representation.

As far as OP's code is concerned i think OP want single string to store all the values with a new line character which is generated within that loop.

Regards
Dheeraj Joshi