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?
2 Answers
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!
6 Comments
Raj kumar
Okay.. Let me try this first. I'd accept your answer!
Raj kumar
No dude.. I tried your answer.. It is getting only one Answer while declaring it.. Any possibilities by using
while loop? What do you say?
Vihar
if you can provide what is your expected output and what is your achieved output with your latest code, it will be easier to solve this
Vihar
@Rajkumar are you still stuck?
Raj kumar
Dude.. I'm want to get the result of that loop, but unfortunately ..I'm getting only one result. Here loop is not working.. :(
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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);
String foo="something";set a default value.I think the error you are getting is that you dint declare foo you only initialize it .