Question

How to make a file read-only in Java

Answer 1

package javaapplication1;
 
import java.io.File;
import java.io.IOException;
 
public class JavaApplication1 {
 
    public static void main(String[] args) throws IOException {
 
        try {
 
            File file = new File("d://data.txt");
            
            boolean b  = file.setReadOnly();
 
            System.out.println(b);
            
            if (file.canWrite() == true) 
                System.out.println("not read only");
            else
                System.out.println("read only");
 
        } catch (Exception e) {
            System.out.print(e.toString());
        }
    }
}
 
/*
           
run:
     
read only
  
 */

 

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