class Driver { public static void main(String[] args) { int a = foo(8); int b = bar(a); } static int foo(int a) { a = bar(a - 1); System.out.print(a); return a; } static int bar(int a) { a = a - 1; System.out.print(a); return a + 0; } }

foo(8) calls bar(7) which prints 7 and then returns 7 to foo. foo prints 7 and returns 7 to the function that called it.main prints 7 and then calls foo(7) which calls bar(6) which prints 6 and returns 6 to foo. foo prints 6 and returns 6 to main.main prints 6 and then calls foo(6) which calls bar(5) which prints 5 and returns 5 to foo. foo prints 5 and returns 5 to main.main prints 5 and then calls foo(5) which calls bar(4) which prints 4 and returns 4 to foo. foo prints 4 and returns 4 to main.main prints 4 and then calls foo(4) which calls bar(3) which prints 3 and returns 3 to foo. foo prints 3 and returns 3 to main.main prints 3 and then calls foo(3) which calls bar(2) which prints 2 and returns 2 to foo. foo prints 2 and returns 2 to main.main prints 2 and then calls foo(2) which calls bar(1) which prints 1 and returns 1 to foo. foo prints 1 and returns 1 to main.main prints 1 and then calls foo(1) which