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| 1 | /* This method will work, everything is scoped correctly. */ | |
| 2 | public static void countToTen() {
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| 3 | ||
| 4 | int count = 1; //count is declared outside the while loop; | |
| 5 | //the while loop can access the variable. | |
| 6 | while ( count <= 10 ) {
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| 7 | System.out.print( count + " " ); | |
| 8 | count = count + 1; | |
| 9 | } | |
| 10 | } | |
| 11 | ||
| 12 | /* This method will not compile. The variable nCubed is defined with too narrow a | |
| 13 | scope for the return statement to access it. It's declared inside the 'if' | |
| 14 | statement's braces, and the return is outside the 'if' statement's braces. | |
| 15 | */ | |
| 16 | public static int cubed( int n ) {
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| 17 | if ( n < 0 ) {
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| 18 | int nCubed = n * n * n * -1; | |
| 19 | } else {
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| 20 | int nCubed = n * n * n; | |
| 21 | } | |
| 22 | - | return nCubed; |
| 22 | + | return nCubed; //compile error here |
| 23 | } |
