KingSirLee

public class Sum{
  public static void main(String[]args){
  int sum=0;
	int i;
	for(i=0;i<=100;i++){
	if(i%2!=0){
		sum+=i;
		  }
	 }
	System.out.print("SUM="+sum);

KingSirLee

public class Exchange{
  public static void main(String[]args){
	java.util.Scanner input=new java.util.Scanner(System.in);
	System.out.println("请输入两个数字：");
	int num1=input.nextInt();
	int num2=input.nextInt();
	System.out.println("现在顺序为"+num1+"	"+num2);
	int c=num1;
	num1=num2;
	num2=c;

KingSirLee

public class Dao{
  public static void main(String[]args){
		java.util.Scanner input=new java.util.Scanner(System.in);
		System.out.println("请输入要倒置的数字：");
		int a=input.nextInt();
		
		while(a!=0){
			int b=a%10;
			System.out.print(b);
			a=a/10;

KingSirLee

public class GuessNum{
  public static void main(String[]args){
		java.util.Scanner input=new java.util.Scanner(System.in);
		java.util.Random random=new java.util.Random();
		int num=random.nextInt(100);
		
		System.out.println("系统已经给出一个随机数x（0<=x<100）,开始猜数！");
		int errorNum=0;
		while(true){
			System.out.println("请输入您猜的数字：");

KingSirLee

public class MaoPao{
    public static void main(Stringt[]args){
        int[] nums={12,25,9,56,21,35,48,5};
  	    for(int i=1;i<nums.length;i++){
		for(int j=0;j<nums.length-i;j++){
		    if(nums[j]>nums[j+1]){
			int temp=nums[j];
			nums[j]=nums[j+1];
			nums[j+1]=temp;
		    }

KingSirLee

public class Login{
  public static void main(String[]args){
		java.util.Scanner input=new java.util.Scanner(System.in);

		int errorNum=0;
		String Lastname="";
		while(true){
			System.out.println("请输入账户：");
			String name=input.next();
		

KingSirLee

public class Content {
  private String name;
	private String tel;
	private String email;
	private String QQ;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;

KingSirLee

public class Account {

  private String username;
	private String password;
	private double money;
	private boolean enable;
	
	public String getUsername() {
		return username;

KingSirLee

import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.util.Scanner;

public class MyIP {

  public static void main(String[] args) throws Exception {
		Scanner input=new Scanner(System.in);
		System.out.println("输入要判断IP地址的主机名（网站）：");

KingSirLee

/**
* 文件流传输基础类
*/
public class AttachmentDTO implements Serializable {
	private static final long serialVersionUID = -5616353779779592228L;
	// 文件名称
	private String name;
	// 文件格式
	private String fileExt;
	// 文件流