/**
 * @author Rollen-Holt JVM虚拟机的内存信息
 */

class hello{
	public static void main(String[] args){
		Runtime run = Runtime.getRuntime();
		System.out.println("JVM的最大内存量为：  " + run.maxMemory());
		System.out.println("JVM的空闲内存量为：  " + run.freeMemory());

		for(int i = 0; i < 100000000; ++i) {
			String str = new String("asda");
		}
		System.out.println("JVM的空闲内存量为：  " + run.freeMemory());

		run.gc();
		System.out.println("JVM的空闲内存量为：  " + run.freeMemory());
	}
}

/**
 * @author Rollen-Holt 使用Runtime运行本机可运行程序
 */

class hello{
	public static void main(String[] args){
		Runtime run = Runtime.getRuntime();
		try{
			run.exec("notepad.exe"); //打开记事本程序
		}catch (Exception e) {
			e.printStackTrace();
		}
	}
}

/**
 * @author Rollen-Holt 
 * 使用Runtime运行本机可运行程序
 * 并且使其5秒后自动关闭
 */

class hello{
	public static void main(String[] args){
		Runtime run = Runtime.getRuntime();
		Process pro=null;
		
		try{
			pro=run.exec("notepad.exe"); //打开记事本程序
		}catch (Exception e) {
			e.printStackTrace();
		}
		
		try{
			Thread.sleep(5000);
		}catch (Exception e) {
			e.printStackTrace();
		}
		pro.destroy();
	}
}

/*
 * 此程序说明 exec的返回类型是Process类型
 * 如果要想使得进程消失，可以使用destroy方法
 */

import java.util.*;
class hello{
	public static void main(String[] args){
		ResourceBundle res=ResourceBundle.getBundle("Message");
		System.out.println(res.getString("name"));
	}
}

import java.util.*;
class hello{
	public static void main(String[] args){
		Locale zhLoc=new Locale("zh","CN");
		ResourceBundle res=ResourceBundle.getBundle("Message",zhLoc);
		System.out.println(res.getString("name"));
	}
}

import java.util.*;
import java.text.*;
class hello{
	public static void main(String[] args){
		Locale zhLoc=new Locale("zh","CN");
		ResourceBundle res=ResourceBundle.getBundle("Message",zhLoc);
		String str=res.getString("name");
		System.out.println(MessageFormat.format(str, "任文超"));
	}
}