How to simplify an if condition having multiple OR cases [closed]

Answer 1

Best approach in my opinion is to use a Map (in Java) or Dictionary in C#:

class MyExample {
    // declaring your static map (should be private static final)
    private static Dictionary myPreciousMap = new HashMap<>();

    public MyExample() {
        String categoryA = "CATEGORY A";
        String categoryX = "CATEGORY X"; // you know, A, B, C, D etc
        myPreciousMap.Add("UCK", categoryA);
        myPreciousMap.Add("SAN", categoryA);
        myPreciousMap.Add("X", categoryX);
    }

    // using it
    public String getCategory(String myString) {
        // this returns exact match (which is recommended)
        // return myPreciousMap.GetValue(myString);

        // this is using the contains
        foreach( KeyValuePair kvp in myPreciousMap) {
            if (myString.contains(kvp.getKey()) return kvp.getValue();
        }
        return "Some sort of Default";
    }
}

This way, you avoid all ifs and makes very easy to see correspondent values and edit them.