ADD file via upload

src/Users.java

@@ -0,0 +1,44 @@
+public class Users {
+  private final String name;
+  private final String password;
+  private final String type;
+  
+  private static final Users[] USERS = {
+      new Users("张三1", "123", "小学"),
+      new Users("张三2", "123", "小学"),
+      new Users("张三3", "123", "小学"),
+      new Users("李四1", "123", "初中"),
+      new Users("李四2", "123", "初中"),
+      new Users("李四3", "123", "初中"),
+      new Users("王五1", "123", "高中"),
+      new Users("王五2", "123", "高中"),
+      new Users("王五3", "123", "高中")
+  };
+  
+  public Users(String name, String password, String type) {
+    this.name = name;
+    this.password = password;
+    this.type = type;
+  }
+  
+  public String getType() {
+    return type;
+  }
+  
+  public String getName() {
+    return name;
+  }
+  
+  public String getPassword() {
+    return password;
+  }
+  
+  public static Users login(String name, String password) {
+    for (Users users : USERS) {
+      if (users.getName().equals(name) && users.getPassword().equals(password)) {
+        return users;
+      }
+    }
+    return null;
+  }
+}