IO流部分实例讲解

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IO流部分：能够进行文件的简单读写操作，能够将文件的内容读取出来；会使用过滤流如BufferedInputStream的使用；了解装饰设计模式

BufferedReaderTest.java

package jsj.java.exam.test06;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class BufferedReaderTest {   public static void main(String[] args) { BufferedReader reader=null; //创建缓冲输入流，接收从键盘中输入一行数据并进行输出显示 //要进行相应的异常处理 //注意关闭流 //reader=________061________ reader=new BufferedReader(new InputStreamReader(System.in));//2 System.out.println("请输入一行数据"); try {String str=reader.readLine();//1System.out.println("你输入的数据为："+str);} catch (IOException e) {//1// TODO Auto-generated catch blocke.printStackTrace();}finally{try {reader.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}   }}

ObjectInputStreamDemo .java

package jsj.java.exam.test06;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;public class ObjectInputStreamDemo {/** * @param args * @throws IOException  * @throws FileNotFoundException  * @throws ClassNotFoundException  */public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException {File file=new File("d:"+File.separator+"person.txt");ObjectInputStream ois=null;ois=new ObjectInputStream(new FileInputStream(file));//Object obj=________064________;//将对象恢复出来Object obj=ois.readObject();//2Person person=(Person)obj;System.out.println(person);}}

ObjectOutputStreamDemo.java

package jsj.java.exam.test06;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.ObjectOutputStream;public class ObjectOutputStreamDemo {/** * @param args * @throws IOException  * @throws FileNotFoundException  */public static void main(String[] args) throws FileNotFoundException, IOException {// TODO Auto-generated method stubFile file=new File("d:"+File.separator+"person.txt");ObjectOutputStream oos=null;//创建对象输出流//oos=________063________;//2oos=new ObjectOutputStream(new FileOutputStream(file));oos.writeObject(new Person("张三", 30));oos.close();}}

person.java

package jsj.java.exam.test06;import java.io.Serializable;public class Person implements Serializable {private String name;//定义年龄属性，此属性不需要持久化保存//________062________//2private transient int age;public Person(String name, int age) {super();this.name = name;this.age = age;}@Overridepublic String toString() {return "Person [age=" + age + ", name=" + name + "]";}}