Write a Java program that takes input 3 floating-point numbers and sends output

Question

Write a Java program that takes input 3 floating-point numbers and sends output the maximum and minimum value. Find the most efficient solution. The processing will take place in a sentinel controlled loop, like in the following sample output:

Sample output:

Min/Max problem for 3 floating-point numbers
============================================
Do you want to start (Y/N): y
Enter 3 float values: 1.2 2.3 3.4
You entered 1.2, 2.3, 3.4
Min = 1.2
Max = 3.4

Do you want to continue (Y/N): y
Enter 3 float values: 2.3 1.2 4.5
You entered 2.3, 1.2, 4.5
Min = 1.2
Max = 4.5

Do you want to continue (Y/N): y
Enter 3 float values: 4.5 3.4 1.2
You entered 4.5, 3.4, 1.2
Min = 1.2
Max = 4.5

Do you want to continue (Y/N): n

Explanation / Answer

This program should work but System.out.println is not proper, you can put and test:

import java.util.Scanner;
public class max_float {
  
   public static void main(String args[])
   {
       System.out.println("Do you want to start (Y/N)");
       Scanner in=new Scanner(System.in);
       String ans=in.nextLine();
       while(ans=="Y")
       {
       System.out.println("Enter the 3 float values:");
       float max=0;
       float min=0;
       float num1=in.nextFloat();
       float num2=in.nextFloat();
       float num3=in.nextFloat();
       if(num1>num2)
       {
           if(num1>num3)
           {
               max=num1;
           }
           else max=num3;
       }
       else
       {
           if(num2>num3)
               max=num2;
           else max=num3;
       }
         
       if(num1<num2)
       {
           if(num1<num3)
               min=num1;
           else
               min=num3;
       }
       else
       {
           if(num2<num1)
           {
               if(num2<num3)
                   min=num2;
               else
                   min=num3;
           }
             
       }
         
       System.out.println("Max: "+max);
       System.out.println("Min: "+min);   
       }
   }

}

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