A simply gist demonstrating how to copy from stdin to stdout in Java, in response to discussion of: https://news.ycombinator.com/item?id=7463671

Copy.java

public class Copy {
	public static void main(String[] args) throws Throwable {
		int next;
		while ((next = System.in.read()) != -1) {
			System.out.write(next);
		}
		System.out.flush();
	}
}