1、創建一個students類
public class students{
//students類的屬性
private String name;
private int age;
private String gender;
//students類的方法
public students(){
//默認方法
}
public students(String name,int age,String gender){
//students類的構造方法
this.name = name ;
this.age = age ;
this.gender = gender ;
}
//students的get方法獲取屬性值
public String getName(){
return this.name;
}
public int getAge(){
return this.age;
}
public String getGender(){
return this.gender;
}
//students的set方法對屬性進行賦值
public void setName(String name){
this.name = name ;
}
public void setAge(int age){
//對age進行範圍圈定和判斷
if(age>45 || age<15){
this.age=18;
}else{
this.age = age ;
}
}
public void setGender(String gender){
this.gender = gender ;
}
}2、創建一個studentsDemo測試類
public class studentsDemo {
public static void main(String[] args) {
//實例化對象
students st = new students() ;
// st.name="小明";
// st.age=12;
// st.gender="男";
// System.out.println(st.name+"\n"+st.age+"\n"+st.gender+"\n");
st.setName("小虎");
st.setAge(14);
st.setGender("男");
System.out.println(st.getName()+"\n"+st.getAge()+"\n"+st.getGender()+"\n");
}
}輸出結果：
小虎
18
男