Practical No 11
Q1. Write a program to show five checkboxes and toast selected checkboxes
Xml file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="16dp">
<CheckBox
android:id="@+id/checkBox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Option 1" />
<CheckBox
android:id="@+id/checkBox2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Option 2" />
<CheckBox
android:id="@+id/checkBox3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Option 3" />
<CheckBox
android:id="@+id/checkBox4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Option 4" />
<CheckBox
android:id="@+id/checkBox5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Option 5" />
<Button
android:id="@+id/btnSubmit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show Selected"
android:layout_marginTop="16dp" />
</LinearLayout>
Java file
package com.example.madprac11;
import android.os.Bundle;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
CheckBox checkBox1 = findViewById(R.id.checkBox1);
CheckBox checkBox2 = findViewById(R.id.checkBox2);
CheckBox checkBox3 = findViewById(R.id.checkBox3);
CheckBox checkBox4 = findViewById(R.id.checkBox4);
CheckBox checkBox5 = findViewById(R.id.checkBox5);
Button btnSubmit = findViewById(R.id.btnSubmit);
btnSubmit.setOnClickListener(v -> {
ArrayList<String> selectedOptions = new ArrayList<>();
if (checkBox1.isChecked())
selectedOptions.add(checkBox1.getText().toString());
if (checkBox2.isChecked())
selectedOptions.add(checkBox2.getText().toString());
if (checkBox3.isChecked())
selectedOptions.add(checkBox3.getText().toString());
if (checkBox4.isChecked())
selectedOptions.add(checkBox4.getText().toString());
if (checkBox5.isChecked())
selectedOptions.add(checkBox5.getText().toString());
String message = selectedOptions.isEmpty() ? "No option selected"
: "Selected: " + String.join(", ", selectedOptions);
Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show();
});
}
}
Output:
