Using Named Parameters in java Class

Question

I have a use case to use named and optional parameter.I tried to use named parameter as in a tutorial but it doesn't work

My code is

public static void Main(String[] args)
  {
     System.out.println((CalculateBMI(weight= 123, height: 64));
  }
  public static int CalculateBMI(int weight, int height)
  {
      return (weight * 703) / (height * height);
  }

getting Error " weight cannot be resolved to a variable" Please help

Answer 1

You're probably reading the wrong tutorial, Java doesn't support neither named nor optional parameters.

See also:

• Named Parameter idiom in Java
• Java optional parameters

Answer 2

This is the best you can do:

int weight = 123; 
int height = 64;    
System.out.println((CalculateBMI(weight, height));

Answer 3

Java does not support named parameters. Groovy, which compiles to Java byte code does have named parameters. Also you can compile Java source files using Groovy (not recommended as you will not benefit from the features of Groovy).

Answer 4

code is:

public static void Main(String[] args) {
    System.out.println(CalculateBMI(123,64));
}

public static int CalculateBMI(int weight, int height) {
    return (weight * 703) / (height * height);
}