/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	private static void test() {
		System.out.println("Hello, world!");
	}
	public static void main (String[] args) throws java.lang.Exception
	{
		String res = null;
		PrintStream originalOut = System.out;
		try {
			ByteArrayOutputStream os = new ByteArrayOutputStream(100);
			PrintStream capture = new PrintStream(os);
			System.setOut(capture);
			test();
			capture.flush();
			res = os.toString();
		} finally {
			System.setOut(originalOut);
		}
		System.out.println("Captured output: "+res);
	}
}

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