Thread: Error in block Scope ecample

Hi all,
I am a beginner in programming and learning java using texteditor. I am getting an error in a program. Please tell me what's wrong in the below code.


// Demonstrate block scope.
class Scope {
public static void main(String args[]) {
int x; // known to all code within main
x = 10;
if(x == 10) { // start new scope
int y = 20; // known only to this block
// x and y both known here.
- 46 -
System.out.println("x and y: " + x + " " + y);
x = y * 2;
}
// y = 100; // Error! y not known here
// x is still known here.
System.out.println("x is " + x);
}
}

Originally Posted by KevinWorkman

When posting code, please use the highlight tags to preserve formatting.

What exact error are you getting? You have it commented with exactly why you'd get an error, so what are you confused about?

Hello, sorry for my posting mistakes..!
// Demonstrate block scope.
class Scope {
public static void main(String args[]) {
int x; // known to all code within main
x = 10;
if(x == 10) { // start new scope
int y = 20; // known only to this block
// x and y both known here.
- 46 -
System.out.println("x and y: " + x + " " + y);
x = y * 2;
}
// y = 100; // Error! y not known here
// x is still known here.
System.out.println("x is " + x);
}
}

In above example it is showing me the error in the line 5 and the error is : Scope.java:5: ';' expected
If(x==10){
^
1 error

Tool completed with exit code 1

I removed it but still it is showing me that error.