看 think in java 例子中有遇到个有关问题，请帮个忙

看 think in java 例子中有遇到个问题，请帮个忙
//: Rethrowing.java
// Demonstrating fillInStackTrace()
package c09;

public class Rethrowing {

public static void f() throws Exception {
System.out.println("originating the exception in f()");

throw new Exception("thrown from f()");
}[color=#FF0000][/color]

public static void g() throws Throwable { //(2)********就是这里，Throwable 换成 Exception 就没问题了
try {
f();
} catch (Exception e) {
System.out.println("Inside g(), e.printStackTrace()");
e.printStackTrace();
throw e; // 17
// throw e.fillInStackTrace(); // 18
}
}

public static void main(String[] args)/* throws Throwable */{
try {
g(); // ****(1) 这里会出现 Unhandled exception type Throwable 错误
} catch (Exception e) {
System.out.println("Caught in main, e.printStackTrace()");
e.printStackTrace();
}
}
} // /:~

书中的例子我改了下，情况代码中的注释（1），和（2）

------解决方案--------------------

Java code


public class Rethrowing {

    public static void f() throws Exception {
        System.out.println("originating the exception in f()");

        throw new Exception("thrown from f()");
    }

    public static void g() throws Throwable { //(2)********就是这里，Throwable 换成 Exception 就没问题了
        try {
            f();
        } catch (Exception e) {
            System.out.println("Inside g(), e.printStackTrace()");
            e.printStackTrace();
            throw e; // 17
// throw e.fillInStackTrace(); // 18
        }
    }

    public static void main(String[] args)/* throws Throwable */{
        try {
            g(); // ****(1) 这里会出现 Unhandled exception type Throwable 错误
//        } catch (Exception e) {
//            System.out.println("Caught in main, e.printStackTrace()");
//            e.printStackTrace();
        }catch(Throwable t){
            //如果go()可能抛出Throwable，应该用catch Throwable
            //或者在main后面  throws Throwable 
            t.printStackTrace();
        }
    }
}

看 think in java 例子中有遇到个有关问题，请帮个忙

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