How do I make a file read-only?

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Index:Java 2 Standard Edition (J2SE):Java 2 JDK:Input/Output (java.io.*):Files / Directories

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How do I make a file read-only?

Use the method setReadOnly in the File class. Notice that there is no method to determine whether a file is read-only or not, neither is there a method to undo the setReadOnly operation:

Main.java:

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When you execute (Windows DOS-prompt) attrib main.java, you'll see:

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Further Information

Author of answer: Joris Van den Bogaert

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