Equivalent of freopen in Java

Please suggest a method to obtain a simila开发者_运维技巧r behaviour in Java as when we do freopen("filename","r",stdin) OR freopen("filename","w",stdout) in C.

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Assuming that this is to redirect stdin/stdout/stderr, have a look at System.setIn and friends. They allow you to assign a different InputStream and PrintStream to System.in, System.out and System.err.

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See the webpage below. There's a solution to what you wanna do.

http://techtipshoge.blogspot.com/2011/01/connect-standard-io-to-files.html