exec执行java程序

import java.io.IOException;
import java.io.InputStream;

public class Test {
	
	public static void main(String[] args) {
		try {
			Process process = Runtime.getRuntime().exec("java -cp D:\\MyEclipse8WorkSpace\\Test\\bin Test1");
			InputStream es = process.getInputStream();
			byte[] buf = new byte[1024];
            int i = 0;
            
			while((i = es.read(buf)) != -1) {
				System.out.println(new String(buf, 0, i));
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
}