JAVA 获取cmd输出内容到控制台

import java.io.IOException;import java.io.InputStream;public class Main {public static void main(String[] args) { try { String cmd = "ping "; String param ="127.0.0.1"; Process child = Runtime.getRuntime().exec(cmd+param); // 获得ping的输出 InputStream child_in = child.getInputStream(); int c; while ((c = child_in.read()) != -1) { //   System.out.println("kkk"); System.out.print((char)c); } child_in.close(); } catch (IOException e) { System.err.println(e); } } }