This example demonstrates how to make a file read-only by using file.setReadOnly() and file.canWrite() methods of File class .
import java.io.File;
public class Main {
public static void main(String[] args) {
File file = new File("C:/java.txt");
System.out.println(file.setReadOnly());
System.out.println(file.canWrite());
}
}
Result:
The above code sample will produce the following result.To test the example,first create a file 'java.txt' in 'C' drive.