A programming, statistics on a hard disk to a text file (for example, d: \ test. TXT) contain letters, Numbers, and the number of other characters, and the number of information to a new text file,

CodePudding user response:

For your reference

 
Import the Java. IO. FileInputStream; 
Import the Java. IO. FileWriter; 
import java.io.IOException; 

Public class Count {
Public static void main (String [] args) {
Count Count=new Count (); 
String STR=count. ReadFile (" D://read. TXT ");//read 
Count. WriteFile (" D://write. TXT ", STR);//write 
} 

Private void writeFile (String filePath String STR) {
FileWriter fw. 
Try {
Fw=new FileWriter (filePath); 
Fw. Write (STR); 
Fw. Close (); 
} the catch (IOException e) {
//TODO Auto - generated the catch block, 
e.printStackTrace(); 
} 
} 

Public String readFile (String fileName) {
Int zm=0; 
Int sz=0; 
Int other=0; 
Try {
@ SuppressWarnings (" resource ") 
FileInputStream fis=new FileInputStream (fileName); 
Byte [] buff=new byte [1024]. 
While (fis) available () & gt; 0 {
Int len=fis. Read (buff); 
String s=new String (buff, 0, len); 
for(int i=0; IChar c=s.c harAt (I); 
If (Character. IsUpperCase (c) | | Character. IsLowerCase (c)) {
Zm++; 
} else if (Character. IsDigit (c)) {
Sz++; 
} else {
Other++; 
} 
} 
} 
} the catch (Exception e) {
e.printStackTrace(); 
} 
Return "letters:" + zm + "" +" \ n number: "+ sz +" "+" \ n other characters: "+ other; 
} 
} 

CodePudding user response:

Baidu search, use the file input and output flow operation