Unchecked異常，不強制try catch

1）Throwable,Exception,當在java程序中，手動拋出時，需要進行捕捉

2）Error，RunTimeException，當在java程序中，手動拋出時，是不需要進行捕捉的

（3）Throwable,Error是unChecked的異常，不強制捕獲，但是如果要捕捉，還是可以捕獲的

源碼：

public class TestThrows {

static void throwRuntimeException(){

throw new RuntimeException("RuntimeException");

}

static void throwError(){

throw new Error("Error");

}

/*static void throwException(){

throw new Exception("Exception");

}

static void throwThrowable(){

throw new Throwable("Throwable");

}*/

public static void main(String[] args) {

System.out.println("before throwError");//before throwError

try {

throwError();

} catch (Error e) {

// TODO Auto-generated catch block

}

System.out.println("after throwError");//after throwError

System.out.println("before throwRuntimeException");//before throwRuntimeException

try {

throwRuntimeException();

} catch (RuntimeException e) {

// TODO Auto-generated catch block

}

System.out.println("after throwRuntimeException");//after throwRuntimeException

}

}