except.java

// $Id: except.java,v 1.1 2000年12月17日 17:58:23 doug Exp $
// http://www.bagley.org/~doug/shootout/
// Collection class code is from my friend Phil Chu, Thanks Phil!
import java.io.*;
import java.util.*;
import java.text.*;
class Lo_Exception extends Exception {
 int num = 0;
 public Lo_Exception(int num) {
 this.num = num;
 }
 public String toString() {
 return "Lo_Exception, num = " + this.num;
 }
}
class Hi_Exception extends Exception {
 int num = 0;
 public Hi_Exception(int num) {
 this.num = num;
 }
 public String toString() {
 return "Hi_Exception, num = " + this.num;
 }
}
public class except {
 static int Lo = 0;
 static int Hi = 0;
 public static void main(String args[]) throws IOException {
 int n = Integer.parseInt(args[0]);
 for (int i=0; i<n; i++) {
 some_function(i);
 }
 System.out.println("Exceptions: HI=" + Hi + " / LO=" + Lo);
 }
 public static void some_function(int n) {
 try {
 hi_function(n);
 } catch (Exception e) {
 System.out.println("We shouldn't get here: " + e);
 }
 }
 public static void hi_function(int n) throws Hi_Exception, Lo_Exception {
 try {
 lo_function(n);
 } catch (Hi_Exception e) {
 Hi++;
 }
 }
 public static void lo_function(int n) throws Hi_Exception, Lo_Exception {
 try {
 blowup(n);
 } catch (Lo_Exception e) {
 Lo++;
 }
 }
 public static void blowup(int n) throws Hi_Exception, Lo_Exception {
 if ((n % 2) == 0) {
 throw new Lo_Exception(n);
 } else {
 throw new Hi_Exception(n);
 }
 }
}