Use method's parameter name as value-CodePudding

I would like to know if its possible in Java, to use method's parameter literal name as value?

I have a method like this:

    protected String resolve(String param, String prop) {
        return Utils.isNullOrBlank(System.getProperty(prop))
                ? param
                : System.getProperty(prop);
    }

The problem is every param is called say env, browser, and every prop is called "myenv", "mybrowser".

So every time I call resolve method I need to write something like resolve(env, "myenv").

Is there possibility to make this method take only one argument, param, take it literal name and add "my" as prefix, instead of passing another prop argument?

CodePudding user response：

No, there is no way to achieve this. Java methods cannot look at the code of the argument passed, to find the name of a variable or otherwise.

CodePudding user response：

Use string concatenation.

String part = "abc";

String full = part   "de";

System.out.println(part);
System.out.println(full);

CodePudding user response：

You must use reflection to achieve this.

There is another question answered with it.

Reflection generic get field value

Field field = object.getClass().getDeclaredField(fieldName);