medium - main 1

MainActivity.java

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    TextInputLayout inputNama, inputNim, inputSemester;
    TextInputEditText etNama, etNim, etSemester;
    Button btnTambahData, btnLiatData;

    String textNama, textNim, textSemester;

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

        if (getSupportActionBar() != null) {
            getSupportActionBar().setTitle("EZQLite");
        }

        initView();
    }

    private void initView() {
        inputNama = findViewById(R.id.inputNama);
        inputNim = findViewById(R.id.inputNim);
        inputSemester = findViewById(R.id.inputSemester);

        etNama = findViewById(R.id.etNama);
        etNim = findViewById(R.id.etNim);
        etSemester = findViewById(R.id.etSemester);

        btnLiatData = findViewById(R.id.btnLihatData);
        btnTambahData = findViewById(R.id.btnTambahData);

        btnLiatData.setOnClickListener(this);
        btnTambahData.setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.btnLihatData:
                
                break;                
            case R.id.btnTambahData:

                break;
        }
    }

    private void hideSoftkey(View v) {
        InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
        if (inputMethodManager != null) {
            inputMethodManager.hideSoftInputFromWindow(v.getWindowToken(), 0);
        }
    }
}