To control the use of custom exceptions generated random number is not even! Hehe now review stage, the small circling the examples out on the share, the welcome given to criticizing
/**
* 产生一个-100到100以内的随机数，判断这个随机数是不是偶数
* @author Administrator
*
*/
class NotPlus extends Exception{
public String notPlus(){
String name="随机数不是正数";
System.out.println(name);
return name;
}
}
class NotEven extends Exception{
public String notEven(){
String name="随机数不是偶数";
System.out.println(name);
return name;
}
}
public class TestException {
public void countNumber(int number)throws NotPlus,NotEven{
if(number<0){
NotPlus np=new NotPlus();
np.notPlus();
}
else if(number%2!=0){
NotEven ne=new NotEven();
ne.notEven();
}
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
TestException testException=new TestException();
int number=(int)(Math.random()*100);
double temp=Math.random();
if(temp<0.5){
number=-number;
}
System.out.println("temp="+temp);
System.out.println("产生的随机数是"+number);
try{
testException.countNumber(number);
}
catch (NotPlus e) {
e.notPlus();
}
catch (NotEven e) {
e.notEven();
}
}
}