package com.ium.example.application1; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import java.util.Date; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.annidato); } public void cliccato(View v) { TextView vv = findViewById(R.id.vista); EditText num1 = findViewById(R.id.numero1); EditText num2 = findViewById(R.id.numero2); int i1 = Integer.parseInt(num1.getText().toString()); int i2 = Integer.parseInt(num2.getText().toString()); vv.setText(""+i1*i2); // Log.e("in MainActivity", "cliccato"); } }