import java.lang.Math;
import java.io.*;

public class TestDfunction {

static void fun(float num1, float num2) throws IOException
        {
            BufferedReader read = new BufferedReader( new InputStreamReader(System.in));
        
            String strNum1, strNum2;
            
            System.out.print("Enter the first number: ");
            strNum1 = read.readLine();
            num1 = Float.parseFloat(strNum1);
            
            System.out.print("Enter the second number: ");
            strNum2 = read.readLine();
            num2 = Float.parseFloat(strNum2);
        
        }

  
static void menu()
{
        
        System.out.println("Please choose the type of operation needs to be computed by pressing the corresponding number: ");
        System.out.println("----------------------------------------------------------------------------------------------");        
        System.out.println("                                    1.        Addition");
        System.out.println("                                    2.        Subtraction");
        System.out.println("                                    3.        Multiplication");
        System.out.println("                                    4.        Division");
        System.out.println("                                    5.        Remainder");
        System.out.println("                                    6.        Minimum");
        System.out.println("                                    7.        Maximum");
        System.out.println("----------------------------------------------------------------------------------------------");    
}      

    public static void main(String[] args)
        
    {
    
        menu();    
        
        try{
        
        BufferedReader read = new BufferedReader( new InputStreamReader(System.in));
        
            float num11, num22;
            String strChoose;
            int choose;
            
            strChoose = read.readLine();
            choose = Integer.parseInt(strChoose);
            System.out.println("");
        
        while ((choose <1) || (choose >8))
        {
        System.out.println();
        System.out.println("The number you have entered is invalid...");
        menu();
        strChoose = read.readLine();
        choose = Integer.parseInt(strChoose);    
        }
        
        
        switch (choose)
        {    
            
        case 1:     
            fun(num11,num22);
            System.out.println("The sum is: "+ (num11 + num22));
            break;
            
        
        case 2:     
            fun(num11,num22);
            System.out.println("The diferrence is: " + (num11 - num22));
            break;
            
        case 3:
            fun(num11,num22);
            System.out.println("The product is: " + (num11 * num22));
            break;
        
        case 4:     
            fun(num11,num22);
            System.out.println("The quotion is: " + (num11 / num22));
            break;

        case 5:     
            fun(num11,num22);
            System.out.println("The remainder is: " + Math.IEEEremainder(num11,num22));
            break;
            
        case 6:     
            fun(num11,num22);
            System.out.println("The smaller value is: " + Math.min(num11,num22));
            break;
            
        case 7:         
            fun(num11,num22);
            System.out.println("The greater value is: " + Math.max(num11,num22));
            break;
            
        case 8:
             System.exit(0);                    
        }
        
            }        
            
        catch (IOException e) {System.out.println("IO Error");}
        }
    }

static float fun(int i) throws IOException
{
            BufferedReader read = new BufferedReader( new InputStreamReader(System.in));
            String strNum;
            
            System.out.print("Enter number " + i + ": ");
            strNum = read.readLine();
            num = Float.parseFloat(strNum);
            return num;  
}