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[Android] 버튼눌렀을때 Text 변하게 하기App/Android 2023. 12. 17. 23:17
activity_main.xml MainActivity.java package com.example.study_1; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; public class MainActivity extends AppCompatActivity { EditText et_id; Button btn_test; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(saved..