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Hi. I´m trying to change a file-extension, but it doesn´t seem to work. When i use System.out.print() it says the new name, but the file in my computer doesn´t change. My code: [CODE]public String changefileextension(String filename) { int lastDot = filename.lastIndexOf("."); if (lastDot != -1) { filename= filename.substring(0, lastDot) + … 
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Hi. I really need help. I´ve written a program in java that connects to an ftp-server and changes files. as it is now i have a JPanel and i have to press a button and write the name of the file but i want the program to do this automatically …
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