Java 学生类和测试类示例 | 代码详解

以下是一个简单的 Java 学生类和测试类的示例，演示了如何创建类、属性、方法以及如何使用测试类实例化对象并调用方法。

学生类：

public class Student {
    private String name;
    private int age;
    private String major;

    public Student(String name, int age, String major) {
        this.name = name;
        this.age = age;
        this.major = major;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    public String getMajor() {
        return major;
    }
}

测试类：

public class TestStudent {
    public static void main(String[] args) {
        Student student1 = new Student('Alice', 20, 'Computer Science');
        Student student2 = new Student('Bob', 21, 'Business');

        System.out.println(student1.getName() + ' is ' + student1.getAge() + ' years old and majors in ' + student1.getMajor());
        System.out.println(student2.getName() + ' is ' + student2.getAge() + ' years old and majors in ' + student2.getMajor());
    }
}

输出结果：

Alice is 20 years old and majors in Computer Science
Bob is 21 years old and majors in Business