编写IoDemo.java的Java应用程序,程序完成的功能是:首先读取text.txt文件内容,再通过键盘输入文件的名称为iodemo.txt,把text.txt的内容存入iodemo.txt
package com.hanqi.test; import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream; public class IoDemo { public static void main(String[] args) { try {
FileInputStream in = new FileInputStream("d:/text.txt");
byte [] b= new byte[1024];
int i =-1;
FileOutputStream out = new FileOutputStream("d:/IoDemo.txt");
while((i=in.read(b))>0)
{
out.write(b,0,i);
}
out.close();
in.close();
System.out.println("存入成功"); } catch (Exception e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
} } }