Java软贱攻城狮

import java.io.OutputStream; public class Demo { public static void main(String[] args) throws Exception { OutputStream out = System.out; out.write("Hello World".getBytes()); } }

import java.io.InputStream; public class Demo { public static void main(String[] args) throws Exception { InputStream in = System.in; StringBuffer buf = new StringBuffer(); System.out.println(...