Copied from http://exampledepot.8waytrips.com/egs/java.io/RenameFile.html // File (or directory) with old name File file = new File(“oldname”); // File (or directory) with new name File file2 = new File(“newname”); if (file2.exists()) throw new java.io.IOException(“file exists”); // Rename file (or directory) boolean success = file.renameTo(file2); if (!success) { // File was not successfully renamed } To append to the … Read more
How do I copy a file in Python? 2 21
The system cannot find the file specified in java
How do I check whether a file exists or not, without using the try statement? 3 39 If the reason you’re checking is so you can do something like if file_exists: open_it(), it’s safer to use a try around the attempt to open it. Checking and then opening risks the file being deleted or moved … Read more
The problem is most likely that your application is using a relative pathname. As @BalusC says, relative pathnames can be problematic. But IMO, he goes way too far when he says “[y]ou should never use relative paths in java.io stuff”. When an application opens a file using (for example) the FileInputStream(File) constructor, relative pathnames are … Read more
Invalid escape sequence (valid ones are \b \t \n \f \r \” \’ \\ )
What is wrong with using feof() to control a read loop? For example: [c]#include <stdio.h> #include <stdlib.h> int main(int argc, char **argv) { char *path = "stdin"; FILE *fp = argc > 1 ? fopen(path=argv[1], "r") : stdin; if( fp == NULL ){ perror(path); return EXIT_FAILURE; } while( !feof(fp) ){ /* THIS IS WRONG */ /* Read … Read more
