网站开发的关键技术,wordpress配置七牛cdn,陈江做网站,做网站 学什么马上就要过年了#xff0c;今天是二月最后一天上班了#xff0c;心情有些激动#xff0c;恨不得立马就到家去。再来公司的时候就是3.1号了#xff0c;所以在离开之前把2月份的小程序们储存起来。虽然很多都是参考了网上的小程序练习#xff0c;但是自己有自己的风格#…马上就要过年了今天是二月最后一天上班了心情有些激动恨不得立马就到家去。再来公司的时候就是3.1号了所以在离开之前把2月份的小程序们储存起来。虽然很多都是参考了网上的小程序练习但是自己有自己的风格感觉存起来意义很大的这样坚持了两个月不到感觉很多基础的东西有了更加清晰的概念解决很多问题的时候都会到原点去想问题了。 package everyworkdayprogramming._2015_2_02;/*** * 将字符串还原成:“我要学编程”。如:我...我.要....* * */
public class Java_2_2 {public static void main(String[] args) {String str 我我....我...我.要...要要...要学....学学..学.编..编编.编.程.程.程..程;str str.replaceAll(\\., );System.out.println(去点以后---str);strstr.replaceAll((.)\\1, $1);System.out.println(str);}
}package everyworkdayprogramming._2015_2_03;import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.SocketException;/*** 模拟UDP协议做一个聊天工具* * * */
public class Java_2_3_server {public static void main(String[] args) throws IOException {// 创建发送服务端DatagramSocket ds new DatagramSocket();// 创建键盘录入对象并用转换流转换后高效处理BufferedReader bufferedReader new BufferedReader(new InputStreamReader(System.in));String s null;while ((s bufferedReader.readLine()) ! null) {// 把每一行数据进行封装byte[] b s.getBytes();String str 192.168.1.221;String[] ipStr str.split(\\.);byte[] ipBuf new byte[4];for (int i 0; i 4; i) {System.out.println(Integer.parseInt(ipStr[i])0xff);ipBuf[i] (byte) (Integer.parseInt(ipStr[i]) 0xff);}DatagramPacket dp new DatagramPacket(b, b.length,InetAddress.getByAddress(ipBuf), 9900);ds.send(dp);}ds.close();bufferedReader.close();}
}package everyworkdayprogramming._2015_2_03;import java.net.DatagramPacket;
import java.net.DatagramSocket;public class Java_2_3_receiver {public static void main(String[] args) throws Exception {// 创建接收端的服务DatagramSocket ds new DatagramSocket(9900);// 接收数据while (true) {byte[] bye new byte[1024];// 调用接收方法接收数据DatagramPacket dp new DatagramPacket(bye, bye.length);ds.receive(dp);// 打印数据System.out.println(dp.getAddress() 发来 new String(dp.getData(), 0, dp.getLength()));}}
}package everyworkdayprogramming._2015_2_04;import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;public class Java_2_4_server {/*** * * 模拟Tcp协议的传输过程* * */public static void main(String[] args) throws Exception {// 定义服务器接收端口ServerSocket serverSocket new ServerSocket(65533);// 获取服务器Socket接口Socket s serverSocket.accept();// 获取读取客户端的流BufferedReader br new BufferedReader(new InputStreamReader(s.getInputStream()));// 定义输出客户端数据的流PrintWriter printWriter new PrintWriter(System.out, true);// 获取反馈给客户端的流PrintWriter pw new PrintWriter(s.getOutputStream(), true);// 写入到客户端的控制台String str null;while ((str br.readLine()) ! null) {printWriter.println(str);// 返回数据pw.println(收到);}serverSocket.close();s.close();}
}package everyworkdayprogramming._2015_2_04;import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;public class Java_2_5_client {public static void main(String[] args) throws Exception {// 定义客户端端口Socket socket new Socket(192.168.1.221, 65533);BufferedReader br new BufferedReader(new InputStreamReader(System.in));OutputStream out socket.getOutputStream();PrintWriter pw new PrintWriter(out, true);// 定义读取服务器的字符流BufferedReader br1 new BufferedReader(new InputStreamReader(socket.getInputStream()));String s1 null;// 写入服务器while ((s1 br.readLine()) ! null) {if (over.equals(s1)) {break;}System.out.println(----------s1);pw.println(s1);// 读取服务器的数据String s3 br1.readLine();System.out.println(s3);}pw.close();br.close();br1.close();socket.close();}
}package everyworkdayprogramming._2015_2_05;import java.net.InetAddress;
import java.net.UnknownHostException;/*** * 通过主机名和IP地址获得对方* * */
public class Java_2_5 {public static void main(String[] args) throws UnknownHostException {InetAddress id1 InetAddress.getByName(mpc-pc);InetAddress id InetAddress.getByName(192.168.1.221);String ip id.getHostAddress();String name id.getHostName();System.out.println(ip ----------------- name);System.out.println(id1.getHostAddress() ----------------- id1.getHostName());}
}package everyworkdayprogramming._2015_2_06;import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;/*** * java的DataOutputStream和DataInputStream* * */
public class Java_2_6 {public static void main(String[] args) throws Exception {Member member new Member(糜鹏程, 23);DataOutputStream dataOutputStream new DataOutputStream(new FileOutputStream(d:/member.mpc));dataOutputStream.writeUTF(member.getName());dataOutputStream.writeInt(member.getAge());// 所有数据到目的地dataOutputStream.flush();// 关闭流dataOutputStream.close();DataInputStream dataInputStream new DataInputStream(new FileInputStream(d:/member.mpc));System.out.println(dataInputStream.readUTF());dataInputStream.close();}
}package everyworkdayprogramming._2015_2_06;public class Member {private String name;private int age;public String getName() {return name;}public void setName(String name) {this.name name;}public int getAge() {return age;}public void setAge(int age) {this.age age;}public Member(String name, int age) {super();this.name name;this.age age;}public Member() {super();}}package everyworkdayprogramming._2015_2_09;import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOError;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.Reader;public class Java_2_9 {/*** * 实现一个包装类,让读出的每一行自动加上行号和:号* * throws FileNotFoundException* * */public static void main(String[] args) throws Exception {File file new File(d: File.separator hello2.txt);Test read new Test(new InputStreamReader(new FileInputStream(file)));File file2 new File(d: File.separator hello22.txt);PrintWriter printWriter new PrintWriter(file2);String tem ;while((temread.myReadLine())!null){printWriter.println(tem);}read.close();printWriter.close();file.delete();file2.renameTo(file);}
}class Test extends BufferedReader {private int lineNumber;public Test(Reader in) {super(in);}public String myReadLine() throws IOException {lineNumber;String tme;if ((tme super.readLine()) ! null) {return lineNumber : tme;} else {return null;}}}package everyworkdayprogramming._2015_2_10;import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.Properties;
import java.util.Set;public class Java_2_10 {/*** * 把Properties.txt中键为count的值改为100* * */public static void main(String[] args) throws Exception {FileInputStream fs new FileInputStream(C:/Users/mpc/workspace/basicknowledge/src/everyworkdayprogramming/_2015_2_10/Properties.txt);Properties pp new Properties();pp.load(fs);fs.close();System.out.println(pp.get(name));SetObject set pp.keySet();for (Object obj : set) {String s (String) obj;if (s.equals(count)) {pp.setProperty(s, 100 );}}PrintWriter pw new PrintWriter(new FileWriter(C:/Users/mpc/workspace/basicknowledge/src/everyworkdayprogramming/_2015_2_10/Properties.txt), true);pp.list(pw);pw.close();}
}package everyworkdayprogramming._2015_2_11;import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;public class Java_2_11 {/*** * 键盘输入转大写在控制台显示* * */public static void main(String[] args) throws Exception {BufferedReader bufferedReader new BufferedReader(new InputStreamReader(System.in));PrintWriter printWriter new PrintWriter(System.out, true);String line null;while ((line bufferedReader.readLine()) ! null) {if (line.equals(break))break;printWriter.println(line.toUpperCase());}bufferedReader.close();printWriter.close();}
}package everyworkdayprogramming._2015_2_13;import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;public class Java_2_13 {/*** * 用字符缓冲流复制一张图片并记算花费时间.* * */public static void main(String[] args) throws Exception {BufferedInputStream in new BufferedInputStream(new FileInputStream(d:result.png));BufferedOutputStream out new BufferedOutputStream(new FileOutputStream(d:result1.png));long l1 System.currentTimeMillis();byte[] bye new byte[1024];int available in.available();int i 0;while ((in.read(bye)) ! -1) {if (i available / bye.length) {out.write(bye);out.flush();i;} else {out.write(bye, 0, available % bye.length);out.flush();}}long l2 System.currentTimeMillis();System.out.println(l2 - l1);in.close();out.close();}
}package everyworkdayprogramming._2015_2_15;import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;public class Java_2_15 {/*** * 自己模拟BufferedReader对象* * */public static void main(String[] args) throws IOException {MyBufferedReader bufferedReader new MyBufferedReader();bufferedReader.setReader(new InputStreamReader(System.in));System.out.println(bufferedReader.myReadLine());bufferedReader.myClose();}
}class MyBufferedReader {private Reader reader;public Reader getReader() {return reader;}public void setReader(Reader reader) {this.reader reader;}// 模拟一次读取一行数据的方法public String myReadLine() throws IOException {StringBuilder builder new StringBuilder();int ch 0;while ((ch reader.read()) ! -1) {if (ch \r) {continue;}if (ch \n) {return builder.toString();} else {builder.append((char) ch);}}// 没有换行的情况if (builder.length() 0) {return builder.toString();}return null;}// 模拟关闭方法public void myClose() throws IOException {reader.close();}}
