java 封装student编写

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 void setName(String name) {
this.name = name;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

public String getMajor() {
return major;
}

public void setMajor(String major) {
this.major = major;
}

public void study() {
System.out.println("I am studying " + major + ".");
}
}