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i have the code below, i want to use a switch-case to check the grade of the student, my problem is that the compiler tells me that swithc only takes intergers as arguments. i had thought i cud have a statement like case a > b where a and b are double.

package tutorial3;

public class Tutorial3 
{
    private String Name, StdID,Program, Year, Class, attendance;
    private double Marks;
    Tutorial3()
    {
       Name = "No data entered";
       StdID = "No data entered";
       Program = "No data entered";
       Year = "No data entered";
       Class = "No data entered";
       Marks = 00.00;
       
    }
    Tutorial3(String name,String StudId,String program, String year,String Class, double MARKS)
    {
        this.setName(name);
        this.setProgram(program);
        this.setStudID(StudId);
        this.setYear(year);
        this.setClass(Class);
        this.setMarks(Marks);
        
    }
    
    public void setMarks(double marks)
    {
        this.Marks = marks;
    }
    public void setName(String name)
    {
        Name = name;
   
    }
    
    public void setStudID(String StudId)
    {
        
        StdID = StudId;
        
    }
    
    public void setProgram(String program)
    {
        Program = program;
        
    }
    
    public void setYear(String year)
    {
        Year  = year;
    }
    
    public void setClass(String Class)
    {
        
        this.Class = Class;
    }
    
    public void getMarks()
    {
        if(this.Marks>50 && this.Marks <=100)
            System.out.println("Pass");
        else
            System.out.println("Fail");
            
    }
    
    public String getName()
    {
        return this.Name;
    }
    
    public String getStudId()
    {
        return this.StdID;
    }
     
    public String getProgram()
    {
        return this.Program;
    }
      
    public String getYear()
    {
        return this.Year;
    }
    
    public String getClasss()
    {
        return this.Class;
    }
    
   
    //define
    public void setAttendance(String answer)
    {
       
        if (answer == "YES" || answer == "yes" || answer == "Yes")
        {
            this.attendance = "present";
            
        }
        else
            this.attendance = "absent";
            
    }
    /*
    public char Grade()
    {
        char grade;
        int mark = (int)this.Marks;
        switch(mark)
        {
            case 1: mark > 80: grade ='A';
        }
    }*/
    
    
    public String getAttendance()
    {
        return this.attendance;
    }
    
    public void print()
    {
        System.out.println("name : "+ this.getName());
        System.out.println("ID   : "+ this.getStudId());
        System.out.println("Program : "+ this.getProgram());
        System.out.println("Class   : "+this.getClasss());
        System.out.println("Year: "+this.getYear());
        
    }

  
    public static void main(String[] args)
    {
        Tutorial3 NewStudent = new Tutorial3();
        //(String name,String StudId,String program, String year,String Class, double MARKS)
        Tutorial3 maas = new Tutorial3("mochakisa","901002555","S/E","2009","Bsem",90);
        NewStudent.print();
        maas.print();
        
    }
}

Edited by Ezzaral: Removed unnecessary formatting tags.

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