How to implement verification function in java

1. Establish input scanning

Use the Scanner class in java to obtain input data. The specific code is as follows:

Scanner scan = new Scanner(System.in);

2. Receive user name

Create a prompt message to prompt for a user name and store the entered user name. The code is as follows:

System.out.println("请输入登陆用户名：");
String usename=scan.nextLine();

3. Receive password

Create a prompt message to prompt for a password and store the entered password. The code is as follows:

System.out.println("请输入登陆的密码：");
String password=scan.nextLine();

4. Verification information

Use the if else statement to verify the user name and password, and print the prompt information. The code is as follows:

if(!usename.equals("me")){
System.out.println("用户名非法。");
}else if(!password.equals("123456")){
System.out.println("登陆密码错误。");
}else{
System.out.println("恭喜您，登陆信息通过验证。");
}

Complete!

Recommended tutorial: java quick start

The above is the detailed content of How to implement verification function in java. For more information, please follow other related articles on the PHP Chinese website!