Question

How can i store the return of a 2D array? For example

public Class A{

public String something(){
String []some_array=new String[2];
//stuff in here...sets elements of our array to something

//unsure of the next line
return some_array[];
}

public static void main(String[] args) {

String []some_other_array=new String[2];
A myA=new A();
//unsure of the next line
some_other_array[]=myA.something();

How do i go about returning the first-second element of the array that is being returned to be the first-second element of the array that i am storing it in?

Also can anyone clarify is it legal to use parameter variables from my method something() inside of it without making them equal to another variable first? I always thought you either had to declare another variable inside the method and make it equal to the parameter and use the new variable you created.

Answer 1

Change the return type of your method as the one shown below:

public String[] something(){
String []some_array=new String[2];
//stuff in here...sets elements of our arrays to something

return some_array;
}

Also note the return statement doesn’t have [] brackets beside the variable some_array.

And in your main method you should write like this:

String[] some_other_array;
A myA=new A();

some_other_array = myA.something();

Also note in the above code that while assigning the array returned by your method to a local variable (here some_other_array) you don’t have to use [] brackets.

And don’t initialize your some_other_array variable, just make a declaration so that when you assign it the array returned by the method then it will be automatically have the size of the returned array.