CODEWITHSUNDEEP
javamethodsreturn
Noah Skull Weijian
Noah Skull Weijian

Reputation: 129

new in java method and return

i have a question. i have to create 3 methods testUreaRisk, testProteinRisk and printResults. and the below is 2 out of the 3.

public class Lab {


        public static String testUreaRisk(double ureaLevel)
        {
            if ((ureaLevel < 0) || (ureaLevel > 10))
                return "0";
            else if (ureaLevel <= 4.0)
                return "-1";
            else 
                return "1";
        }

        public static String testProteinRisk(double proLevel)
        {
            if ((proLevel < 0) || (proLevel >150))
                return "0";
            else if (proLevel >= 67.0)
                return "1";
            else 
                return "-1";

        }

so my problem is can i put a value into the return number 1, 0,-1 as -1 = low risk, 0 = cannot be defined and 1 = high risk? if can,how? because the 3rd method could only allow me to return a string that show the result (low risk,cannot be defined and high risk) instead of the number(-1,0,1).thanks

Upvotes: 0

Views: 87

Answers (2)

Ruchira Gayan Ranaweera
Ruchira Gayan Ranaweera

Reputation: 35597

But better way is use an Enum.

Eg: 

  public enum Enum {
   LOW("-1"), NOT_DETERMINED("0"), HIGH("1");

  }

Eg:

My Enum class 

public enum Enum {
    LOW("-1"), NOT_DETERMINED("0"), HIGH("1");
    private String code;
    private Enum(String c) {
        this.code = c;
    }

    public String getCode() {
        return this.code;
    }

    public static Enum getEnum(String code) {
        switch (code) {
            case "-1":
                return LOW;
            case "0":
                return NOT_DETERMINED;
            case "1":
                return HIGH;
            default:
                return null;
        }
    }
}

Now 

System.out.println(Enum.getEnum(testProteinRisk(10)));

Will give you

LOW

Upvotes: 3

Beri
Beri

Reputation: 11620

You should go with an Enum class here. If you want to have int values, you could create in each enum a emthod that will re`enter code hereturn this value:)

Enum { LOW(-1), NOT_DETERMINED(0), HIGH(1);
 // getters
 }

Upvotes: 1

Related Questions