创建一个Student类，有学院，班级，学号，姓名，性别，楼号，房间号，面积，所容纳人数，已入住的Java代码

以下是一个简单的示例代码：

public class Student {
    private String college;
    private String className;
    private String studentNumber;
    private String name;
    private String gender;
    private String building;
    private String roomNumber;
    private double area;
    private int capacity;
    private boolean isOccupied;

    public Student(String college, String className, String studentNumber, String name, String gender, String building, String roomNumber, double area, int capacity, boolean isOccupied) {
        this.college = college;
        this.className = className;
        this.studentNumber = studentNumber;
        this.name = name;
        this.gender = gender;
        this.building = building;
        this.roomNumber = roomNumber;
        this.area = area;
        this.capacity = capacity;
        this.isOccupied = isOccupied;
    }

    // getter and setter methods
    // ...

    public static void main(String[] args) {
        Student student = new Student("Engineering", "2022", "001", "John", "Male", "A", "101", 12.5, 4, true);
        System.out.println(student.getName() + " has moved into room " + student.getRoomNumber() + " in building " + student.getBuilding() + ".");
    }
}

这里我们定义了一个 `Student` 类，包含学院、班级、学号、姓名、性别、楼号、房间号、面积、所容纳人数和是否已入住等属性。在 `main` 方法中，我们创建了一个 `Student` 对象，并打印出该学生已入住的房间信息。