Android how can I access resources in class?

Issue

I am trying to get String app_name from resources but I keep getting a null object reference. How can I fix it?

package com.testandroid;

import android.app.Activity;
import android.content.Context;
import android.util.Log;
import java.util.HashMap;


public class Test extends Activity {
    public Test() {
        try {
            String hello = getString(R.string.app_name);

        } catch (Exception e) {
            Log.d("myLogs", e.getMessage());
        }
      }
}


<resources>
    <string name = "app_name">Name</string>
</resources>

Solution

Ok, the easiest way is to use Context.

public class Test extends Activity {
    public Test(Context context) {
        try {
            String hello = context.getResources().getString(R.string.app_name)

        } catch (Exception e) {
            Log.d("myLogs", e.getMessage());
        }
      }
}

Answered By - Ihor Salnikov