Is the following code fragment correct?

int sum = 0; for ( int j = 0; j < 8; j++ ) sum = sum + j; System.out.println( "The sum is: " + sum );

A good answer might be:

Yes. The variable sum was declared outside of the for statement and can be used outside of the loop body.

The scope of a variable is the statements where it can be used. The scope of a variable declared as part of a for statement is that statement and its loop body. A future chapter will discuss scope in more detail.

Another way to say this is:

A loop control variable declared as part of a for statement can only be "seen" by the for statement and the statements of that loop body.

QUESTION 3:

Is the following code correct?

class bigScope { public static void main ( String[] args ) { int sum = 0; for ( int j = 0; j < 80; j++ ) { if ( j % 7 != 0 ) sum = sum + j; else System.out.println( "Not added to sum: " + j ); } System.out.println( "The final sum is: " + sum ); } }