public class Student01 {

	private final int id = 1;
	private int age;
	private String name;
	private int classes;
	private static  String school ="合师";
    
    public Student01(){
    	this(22,"小明",424);
    }
    
    public Student01(int age,String name,int classes){
        this.age = age;
    	this.name = name;
    	this.classes = classes;
    }
    public void setAge(int age){             //修改年龄
    	this.age = age;
    } 
    public void setName(String name){        //修改姓名
    	this.name = name;
    }
    public void setClasses(int classes){     //修改班级
    	this.classes = classes;
    }
    
    public int getId(){                      //获取学号
    	return  id;
    }
    public int getAge(){                     //获取年龄
    	return age;
    }
    public String getName(){                 //获取姓名
    	return name;
    }
    public int getClasses(){                 //获取班级
    	return classes;
    }
    public String getSchool(){               //获取学校
    	return school;
    } 
    
    
    
    public String  getInFo(){
    	 return "学号：" + id + "；\t\t年龄：" + age + "：\t\t姓名：" + name + 
    			 "：\t\t班级：" + classes + "：\t\t学校：" + school;
    }
 
public static void main(String[] args) {
		 Student01 student01 = new Student01();
		 System.out.println(student01.getInFo());
		 
		 Student01 student02 = new Student01();
		 student02.setAge(20);
		 student02.setName("小亮");
		 student02.setClasses(555);
		 System.out.println("学号：" + student02.getId() + "：\t\t年龄：" + student02.getAge()
				 +"：\t\t姓名：" + student02.getName() + "：\t\t班级：" + student02.getClasses( )
				 + "：\t\t学校：" + student02.getSchool());
	 
       }
}