public class CircleWithException {
private double radius;
private static int numberOfObjects = 0;
public CircleWithException() {
this(1.0);
}
public CircleWithException(double newRadius) {
setRadius(newRadius);
++numberOfObjects;
}
public double getRadius() {
return radius;
}
public void setRadius(double newRadius) {
if (newRadius >= 0)
radius = newRadius;
else
throw new IllegalArgumentException("Radius cannot be negative");
}
public static int getNumberOfObjects() {
return numberOfObjects;
}
public double findArea() {
return radius * radius * 3.14159;
}
}
public class TestCircleWithException {
public static void main(String[] args) {
try {
CircleWithException c1 = new CircleWithException(5);
CircleWithException c2 = new CircleWithException(0);
CircleWithException c3 = new CircleWithException(-5);
}
catch (IllegalArgumentException ex) {
ex.printStackTrace();
}
System.out.println("Number of objects created: " +
CircleWithException.getNumberOfObjects());
}
}
这是全部的代码,在运行多次的时候会有两种不同的情况
第一种是这样异常处理在后面打印出来
然后第二种情况是异常处理在前面打印,然后是代码中最后一句打印内容
很不能理解,Java中同样的代码为何能有两种不同的情况,希望有人可以解答一下,非常感谢