//: 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(); } }}