class Student{ private String name; private int age; private double cj; public void setName(String name){ this.name = name; } public String getName(){ return name; } public void setAge(int age){ this.age = age; } public int getAge(){ return age; } public void setCj(double cj){ this.cj = cj; } public double getCj(){ return cj; } public class Test{ public static void main(String args[]){ Student s = new Student(); s.setName("菠萝吹雪"); s.setAge(20); s.setCj(100); System.out.println(s.getName()); System.out.println(s.getAge()); System.out.println(s.getCj()); } } }

这段代码与前面的代码相比，只有一个小错误，即没有正确关闭Student类的大括号。应该将Test类的大括号放在Student类的后面，如下所示：

class Student{     
    private String name;     
    private int age;         
    private double cj;          
    
    public void setName(String name){         
        this.name = name;             
    }     
    
    public String getName(){         
        return name;     
    }         
    
    public void setAge(int age){         
        this.age = age;             
    }     
    
    public int getAge(){         
        return age;     
    }       
    
    public void setCj(double cj){         
        this.cj = cj;             
    }     
    
    public double getCj(){         
        return cj;     
    }   
}

public class Test{       
    public static void main(String args[]){         
        Student s = new Student();         
        s.setName("菠萝吹雪");         
        s.setAge(20);         
        s.setCj(100);         
        System.out.println(s.getName());         
        System.out.println(s.getAge());         
        System.out.println(s.getCj());         
    }       
}

除此之外，这两段代码没有任何区别。