Class member in java and assignment -

below program have doubts about:

    import java.util.scanner;      class degrees     {     float faren;     //float cel = (faren-32)*0.55f; doesn work     void conversion()     {         system.out.println("fahrenheit "+(faren-32)*0.55f+"celcius");         //system.out.println("fahrenheit "+cel+"celcius"); doesnt work     }     }      class problem4      {     public static void main(string args[])     {         degrees deg = new degrees();         system.out.println("enter temperature in fahrenheit");         try(scanner n1 = new scanner(system.in))         {             deg.faren = n1.nextfloat();         }         deg.conversion();     }    } 

so 2 statements have made comments

  float cel = (faren-32)*0.55f;// 1 ,    system.out.println("fahrenheit "+cel+"celcius");//this 1 

both above statement not work. m assigning value of faren calling object still. can explain me why?

its simple program please don't correct mistakes if any. need figure out myself. me above 2 statement guys.

use instead:

class degrees     {     float faren = 0;     float cel = 0;      void degrees(float faren)     {        this.faren = faren;        this.cel = (this.faren-32)*5.0f/9.0f;     }     void conversion()     {         //system.out.println("fahrenheit "+(this.faren-32)*0.55f+"celcius");         system.out.println("fahrenheit "+this.cel+"celcius");     }     } 

use this:

var deg = new degrees(farheneitvaluehere); deg.conversion(); 

this float cel = (faren-32)*0.55f; not work because cannot initialise property when defined expression (especially expression includes property). system.out.println("fahrenheit "+cel+"celcius"); not work because cel has not been defined/converted (by 1st reason). initialise values in constructor instead (as in example above)