Java 8 day 









 1 package Joker;
 2   
 3 import java.io.File;
 4 import java.io.FileReader;
 5 import java.io.FileWriter;
 6 import java.io.IOException;
 7   
 8 public class XXX {
 9     public static void main(String[] args) throws IOException {
10         File a=new File("C:\\Users\\Administrator\\Desktop\\java\\a");
11         File b=new File("C:\\Users\\Administrator\\Desktop\\java\\b");
12         boolean c=a.createNewFile();
13         boolean d=b.createNewFile();
14         FileReader r=new FileReader(a);
15         FileWriter w=new FileWriter(b);
16         r.read();
17         char[] ci=new char[5];
18         int len=r.read(ci);
19         w.write(ci);
20         w.write(ci,0,5);
21         w.write("asrshtd",0,4);
22         w.write(97);
23         w.close();
24         r.close();
25      }
26  }






 


 






 


 1 package Joker;
 2 import java.io.File;
 3 import java.io.FileInputStream;
 4 import java.io.FileOutputStream;
 5 import java.io.IOException;
 6 public class XXX {
 7     public static void main(String[] args) throws IOException{
 8         File y=new File("C:\\Users\\Administrator\\Desktop\\java\\y");
 9         File w=new File("C:\\Users\\Administrator\\Desktop\\java\\w");
10         boolean c=y.createNewFile();
11         boolean d=w.createNewFile();
12         FileInputStream fi=new FileInputStream(y);
13         FileOutputStream fo=new FileOutputStream(w);
14         byte[] bi=new byte[1024];
15         int len=0;
16         while((len=fi.read(bi))!=-1){
17             fo.write(bi);
18         }
19         fo.close();
20         fi.close();
21     }
22 }




 






            

            
posted @ 
2021-05-11 09:56 
WakkJoker 
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