Char variable comparison issue in java [duplicate]

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• Take a char input from the Scanner 17 answers

I have a problem try to compare variables char the program do not comppile...

will you plase showme the problem...

Scanner sc = new Scanner(System.in);
double desca=0.05;

System.out.println("Categori type *A* o *B*");
char cate = sc.nextChar();
System.out.println("type total to pay a" + cate + ".");
double map = sc.nextDouble();

if(cate=='a')
map=map-(desca*map);

System.out.println("Monto a pagar es de " + map + " pesos.");