黑马程序员Java自学编程代码实例

import java.net.*; public class Client {

Socket socket; BufferedReader in; PrintWriter out; public Client() { try {

System.out.println(\ socket = new Socket(\ System.out.println(\ System.out.println(\ BufferedReader line = new BufferedReader(new InputStreamReader(System.in));

out = new PrintWriter(socket.getOutputStream(),true); out.println(line.readLine());

in = new BufferedReader(new InputStreamReader(socket.getInputStream())); System.out.println(in.readLine()); out.close(); in.close();

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socket.close(); }catch(IOException e) {

out.println(\ } }

public static void main(String[] args) {

new Client(); } };

139、用JAVA实现一种排序，JAVA类实现序列化的方法(二种)？ 如在COLLECTION框架中，实现比较要实现什么样的接口？

答:用插入法进行排序代码如下 package test; import java.util.*; class InsertSort {

ArrayList al;

public InsertSort(int num,int mod) {

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al = new ArrayList(num); Random rand = new Random();

System.out.println(\ for (int i=0;i

al.add(new Integer(Math.abs(rand.nextInt()) % mod + 1)); System.out.println(\ } }

public void SortIt() {

Integer tempInt; int MaxSize=1;

for(int i=1;i

tempInt = (Integer)al.remove(i);

if(tempInt.intValue()>=((Integer)al.get(MaxSize-1)).intValue()) {

al.add(MaxSize,tempInt); MaxSize++;

System.out.println(al.toString()); } else {

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for (int j=0;j

(((Integer)al.get(j)).intValue()>=tempInt.intValue()) {

al.add(j,tempInt); MaxSize++;

System.out.println(al.toString()); break; } } } }

System.out.println(\ for(int i=0;i

System.out.println(\ } }

public static void main(String[] args) {

InsertSort is = new InsertSort(10,100);

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