Code snippets and tips

Reassigns standard input stream (System.in) from a file

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

public class SystemExample {
	public static void main(String[] args) throws IOException {
		InputStream in = new FileInputStream(new File("c:\\temp\\out.log"));

		System.setIn(in);

		byte b[] = new byte[System.in.available()];
		System.in.read(b);

		System.out.println(new String(b));
	}
}

Tags: java.lang, java.lang.System, System, System examples

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