public class RuntimeDemo { public static void main(String[] args) throws IOException { //获取Runtime类对象 Runtime runtime = Runtime.getRuntime(); //返回 Java 虚拟机中的内存总量。 System.out.println(runtime.totalMemory()); //返回 Java 虚拟机试图使用的最大内存量。 System.out.println(runtime.maxMemory()); //创建一个新的进程执行指定的字符串命令,返回进程对象 Process process = runtime.exec("ipconfig"); //获取命令执行后的结果,通过输入流获取 InputStream inputStream = process.getInputStream(); byte[] arr = new byte[1024 * 1024* 100]; int b = inputStream.read(arr); System.out.println(new String(arr,0,b,"gbk")); } }
标签:arr,runtime,System,println,Runtime,out From: https://www.cnblogs.com/lyn8100/p/16073194.html