TryCatchBlocks.java

/**
 * Example of Try-Catch Blocks. 
 *
 * @author William Albritton 
 * @author Lisa Miller
 * @since 2/4/2018
 */
public class TryCatchBlocks { 

   /**
    * The "main" Method Starts The Program.
    *
    * @param args Are Not Used.
    */	
   public static void main(String[ ] args) {  
      //Initializing all Integer & String Variables
      Integer result = Integer.valueOf(9);
      Integer [ ] numbers = {10, 20, 30, 40, 50};
      Integer lastNumber = Integer.valueOf(0);
         
      //Try Block for possible exceptions
      try {
         //IF Divide By Zero,
         //then next 3 lines of code are skipped
         result = 7 / result;
         System.out.println("result = " + result);
         //IF the array index [ ] Throws An Exception,
         //then the following line of code is skipped
         lastNumber = numbers[5];
         System.out.println("lastNumber = " + lastNumber);
      }
      //Catch Blocks for The Two Possible Exceptions.
      catch (ArithmeticException exception1) {
         System.out.println("ERROR: Cannot divide by zero!");
      }
      catch (ArrayIndexOutOfBoundsException exception2) {
         System.out.println("ERROR: Incorrect array index!");
      }     	    					
   }
}