<pre><code class="java"> try { int a = 0;


try {
    int a = 0;
    int b = 42/a;
    System.out.print("A");
} catch (Exception e) {
    System.out.print("C");
} catch (ArithmeticException e) {
    System.out.print("B");
}

AB
AC
ABC
C
B
CB
Compilation error

Explanation

Subclass must follow before its superclass in a series of catch-operators. If it does not, there will be an unreachable code made and a compilation error.