摘要： import java.time.LocalDate;import java.time.LocalDateTime; public class lianxi { public static void main(String[] args){ LocalDate d = LocalDate.of(19 阅读全文

摘要： import java.util.*;public class lianxi { public static void main(String[] args){ Calendar c = Calendar.getInstance(); int a = c.get(Calendar.HOUR_OF_D 阅读全文

摘要： import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;//分解文件public class DatagramPacket1 { public static void main 阅读全文

摘要： import java.io.FileInputStream;import java.io.FileNotFoundException;import java.net.DatagramPacket;import java.net.DatagramSocket;import java.net.Inet 阅读全文

摘要： package Demo;import javax.imageio.ImageIO;import java.awt.*;import java.awt.image.BufferedImage;import java.io.FileOutputStream;import java.io.IOExcep 阅读全文

摘要： package Demo;import javax.imageio.ImageIO;import java.awt.*;import java.awt.image.BufferedImage;import java.io.File;import java.io.FileOutputStream;im 阅读全文

摘要： import java.awt.Color;import java.awt.Graphics;import java.awt.Graphics2D;import java.awt.RenderingHints;import java.awt.image.BufferedImage;import ja 阅读全文

摘要： public class Homework21 { public static void main(String[] args) { Random rand = new Random(); Scanner sc = new Scanner(System.in); int num = rand.nex 阅读全文

摘要： public class Homework{ public static void main(String[]args){ String a = "ja456va p5465hp java458script <div>465</div>"; Pattern s = Pattern.compile(" 阅读全文

摘要： public class Homework { public static void main (String[]args){ String a = "<div><h3>hello</h3></div><p><div>ok</div></p><div>hello333</div>"; Pattern 阅读全文