package Chapter11Throwable;

import java.io.Closeable;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStream;

import java.util.Scanner;

public class ExceptionTest implements Closeable{

public void test() throws FileNotFoundException{

//String path= this.getClass().getClassLoader().getResource("/").getPath();

//System.out.println("��·��::"+path);

//����Դ��try��� ����try-with-resource �����Զ�������Դ���á���������

try(Scanner sc=new Scanner(new FileInputStream("readme.txt"))){

while(sc.hasNext()){

System.out.println(sc.next());

}

}

}

//��ջ����

public int factorial(int a){

System.out.println("factorial::"+a);

Throwable t=new Throwable();

StackTraceElement[] frans=t.getStackTrace();

for(StackTraceElement f:frans){

System.out.println(f);

}

int s;

if(a<=1) s=a;

else s=a*factorial(a-1);

System.out.println("return ::"+s);

return s;

}

//��catch���ٴ��׳��쳣���쳣��

public void ExceptionAgain() throws Throwable{

try {

Scanner sc=new Scanner(new FileInputStream("/readme.txt"));

} catch (FileNotFoundException e) {

Throwable t=new Throwable("Scanner error");

t.initCause(t);

throw t;

}

}

public static void main(String[] args) {

ExceptionTest test= new ExceptionTest();

try {

test.test();

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

//System.out.println(test.factorial(3));

/*try {

test.ExceptionAgain();

} catch (Throwable e) {

// TODO Auto-generated catch block

//�ڴ˴������쳣��Դ

//�쳣ʹ�û�������ֻ���쳣�����ʹ���쳣

e.getCause();

System.out.println("�쳣��Դ����"+e.getCause());

}*/

}

@Override

public void close() throws IOException {

// TODO Auto-generated method stub

System.out.println("���ùر���Դ�ķ���");

}

}