用逗号分隔所有具有非空值的EditText

import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import androidx.appcompat.app.AppCompatActivity;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        List<EditText> editTextList = new ArrayList<>();
        editTextList.add((EditText) findViewById(R.id.editText1));
        editTextList.add((EditText) findViewById(R.id.editText2));
        editTextList.add((EditText) findViewById(R.id.editText3));

        List<String> nonEmptyValues = new ArrayList<>();
        for (EditText editText : editTextList) {
            String text = editText.getText().toString().trim();
            if (!text.isEmpty()) {
                nonEmptyValues.add(text);
            }
        }

        String result = String.join(",", nonEmptyValues);
        System.out.println("Non-empty values: " + result);
    }
}