반응형 TextView1 20250925_android4 //MainActivity.javapackage com.example.project0925_b;import androidx.appcompat.app.AppCompatActivity;import android.graphics.Color;import android.os.Bundle;import android.view.View;import android.widget.Button; // 추가import android.widget.TextView;public class MainActivity extends AppCompatActivity { Button btn1; TextView txtView1; @Override protected void onCreate(Bundle savedIn.. 2025. 9. 25. 이전 1 다음