Question: What will this small program output? class Main { public static void foo ( ) { int x = 2 1 ; } System.out.println (

What will this small program output?
class Main {
public static void foo(){
int x=21;
}
System.out.println(x);
public static int x=21;
public static void main(string[] args){
foo();
}
}
What will this small program output? class Main { public static

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