简单工厂代码

import java.text.DateFormat;
import java.text.NumberFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.Date;

import org.junit.Test;



public class SimpleFactoryDemo {
	@Test
	protected void method1() {
		//介绍几个简单工厂案例。
		DateFormat dateFormat=DateFormat.getInstance();
		Date date=new Date();
		System.out.println(dateFormat.format(date)+"n");
		
		
		
		//这些都是一个工厂方法。你可以点击源码去看。
		System.out.println(LocalDate.now());


		System.out.println(LocalDateTime.now().hashCode());
		System.out.println(LocalDateTime.now().hashCode());
		System.out.println(LocalDateTime.now());
		System.out.println(LocalDateTime.now());
		System.out.println(LocalDateTime.now());

		
		NumberFormat numberFormat=NumberFormat.getInstance();
		NumberFormat PercentFormat=NumberFormat.getPercentInstance();
		double num=2.3;
		System.out.println(numberFormat.format(num)+"n"+PercentFormat.format(num));
	}
}