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,double,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