How to pass variable outside loop?

Question

I've this variable:

String foo;

for(String links: Result){

    String myVariable="\n"+foo;
}

System.out.println(foo); //loop is giving error here..

How to use foo variable outside for loop in Java?

Answer 1

you just need to do

String foo=null; //or any default value you want your string to contain

for(String links: Result){

    String myVariable="\n"+foo;
}

System.out.println(foo);

your error is, you have declared a variable but not initialized it,

you can have a look at this link to understand why this error was caused.

Hope this helps!

Good luck!

Answer 2

Here, you could almost eliminate the for loop, entirely, and see the issue with the code in your post (as the for loop is not actually doing anything to String foo . So, as another user suggested, although you have declared foo , you have not done anything with the variable to give it a value.

So, your code is essentially:

String foo;    
System.out.println(foo);

Were your for loop to modify foo , then you would see a result:

String foo;

for(String links: Result){

    foo = foo + "a value added each time the loop iterates";
}

System.out.println(foo);