显示JAVA版本信息和生成JAVA随机数 System.getProperties randomUUID

package com.hello;

import java.util.Properties;
import java.util.UUID;
public class HelloWorld {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		System.out.println("");
		String MT = "";
		System.out.println(MT);
		
		Properties properties = System.getProperties();
		// 遍历所有的属性
		for (String key : properties.stringPropertyNames()) {
			// 输出对应的键和值
			System.out.println(key + "=" + properties.getProperty(key));
		}
		for (int i = 0; i < 10; i++) {
			String uuid = UUID.randomUUID().toString().replaceAll("-", "").toUpperCase();
			System.out.println(uuid);
		}
	}
}

java.vm.specification.version=1.8
sun.arch.data.model=64
java.home=C:\Program Files\Java\jdk1.8.0_281\jre
sun.java.command=com.hello.HelloWorld
java.specification.vendor=Oracle Corporation
user.language=zh
awt.toolkit=sun.awt.windows.WToolkit
java.vm.info=mixed mode
java.version=1.8.0_281
java.vendor=Oracle Corporation
file.separator=\
java.vendor.url.bug=http://bugreport.sun.com/bugreport/
sun.cpu.endian=little
sun.io.unicode.encoding=UnicodeLittle
sun.desktop=windows
sun.cpu.isalist=amd64
1165242F90D74F1EB54E642B9CC1AA29
73AB10E07BC340E5BC89C49BC0AE0A21
0B3B5906E99C4AE1B473C658945028FD
6D4FB29030CB418794A96D88D3BF0EF8