java7增强的try语句关闭资源

传统的关闭资源方式
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
class Student implements Serializable {
private String name;
public Student(String name) {
this.name = name;
}
}
public class test2 {
public static void main(String[] args) throws Exception {
Student s = new Student("WJY");
Student s2 = null;
ObjectOutputStream oos = null;
ObjectInputStream ois = null;
try {
//创建对象输出流
oos = new ObjectOutputStream(new FileOutputStream("b.bin"));
//创建对象输入流
ois = new ObjectInputStream(new FileInputStream("b.bin"));
//序列化java对象
oos.writeObject(s);
oos.flush();
//反序列化java对象
s2 = (Student) ois.readObject();
} finally { //使用finally块回收资源
if (oos != null) {
try {
oos.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
if (ois != null) {
try {
ois.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
}
}