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Validation: Added Toast messages for empty or invalid input

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Rapturate
2026-08-28 10:48:46 -04:00
parent 88e1f88a14
commit 4e44a1f8b0
1 changed files with 3 additions and 0 deletions
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app/src/main/java/com/example/assignmentone/MainActivity.java
+3
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@@ -6,6 +6,7 @@ import android.view.View;
import android.widget.Button; import android.widget.Button;
import android.widget.RadioButton; import android.widget.RadioButton;
import android.widget.TextView; import android.widget.TextView;
import android.widget.Toast;
import androidx.activity.EdgeToEdge; import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity; import androidx.appcompat.app.AppCompatActivity;
@@ -43,6 +44,7 @@ public class MainActivity extends AppCompatActivity {
String userInput = tempInput.getEditText().getText().toString().trim(); String userInput = tempInput.getEditText().getText().toString().trim();
if(userInput.isEmpty()) { if(userInput.isEmpty()) {
tempInput.setError("Please enter a temperature"); tempInput.setError("Please enter a temperature");
Toast.makeText(MainActivity.this, "Error: No value entered", Toast.LENGTH_SHORT).show();
return; return;
} }
try { try {
@@ -61,6 +63,7 @@ public class MainActivity extends AppCompatActivity {
} catch (NumberFormatException e) { } catch (NumberFormatException e) {
tempInput.setError("Invalid number format"); tempInput.setError("Invalid number format");
Toast.makeText(MainActivity.this, "Error: Invalid number or special characters", Toast.LENGTH_SHORT).show();
} }
} }
}); });