Question

String fileOne = “C:/1236.pdf”;

String fileTwo = “C:/22.pdf”;

String mergedFileLocation = “C:/myMergedData.pdf”;

if (new File(mergedFileLocation).renameTo(new File(fileOne))) {

// rename successful } else {

// rename has failed }

after the merging is done

rename an existing file

so i need to delete the fileOne first later i guess i need to rename

i need to rename and replacing the mergedFileLocation equals to fileOne

i.e., myMergedData.pdf to 1236.pdf

Answer 1

Delete the old file first.

File f = new File(fileOne);
if (f.delete() && new File(mergedFileLocation).renameTo(f)) { 
    //successfully renamed
}