Exceptions - Beginning Java - page 356

import java.io.IOException;
public class TryBlockTest {
public static void main(String[] args) {
// Code for main()..
}
// Divide method
public static int divide(int[] array, int index) {
// Code for divide()...
}
}
TryBlockTest.java
The idea behind the divide() method is to pass it an array and an index as arguments. By choosing
the values in the array and the index value judiciously, you are able to cause exceptions of type Arith-
meticException and ArrayIndexOutOfBoundsException to be thrown. You use a try block plus two
catch blocks for the exceptions, and you throw in a finally block for good measure. Here's the code
for divide() :
public static int divide(int[] array, int index) {
try {
System.out.println("\nFirst try block in divide() entered");
array[index + 2] = array[index]/array[index + 1];
System.out.println("Code at end of first try block in
divide()");
return array[index + 2];
} catch(ArithmeticException e) {
System.out.println("Arithmetic exception caught in divide()");
System.out.println("index = " + index +
" Expression: " + "array[" + index + "]/array["+ (index+1)
+"] is " +
array[index] + "//" +
array[index+1]);
} catch(ArrayIndexOutOfBoundsException e) {
System.out.println("Index-out-of-bounds exception caught in
divide()");
System.out.println("array length = " + array.length +
" index = " +
index);
} finally {
System.out.println("finally block in divide()");
}