ManfredShuai的博客

package myday01.enumeration;import org.junit.Test;public class Demo2 { public void infoOfPlanet(Planet p){ System.out.println(p + ":mass is " + p.getMass() + "; radius is " + p.getRadius() +";

package myday02.xml.exercise;import java.io.BufferedReader;import java.io.FileOutputStream;import java.io.InputStreamReader;import javax.xml.parsers.DocumentBuilder;import javax.xml.parsers.Doc...

package myday01;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileReader;import java.io.IOException;import java.io.InputStream;import java.io.