Q1. Create an Android App, it reads the Students Details (Name, Surname, Class, Gender, Hobbies,
Marks) and display the all information in another activity in table format on click ofSubmit button

ChatGPT
To create an Android app that reads student details (name, surname, class, gender, hobbies, marks) and displays all information in another activity in table format on click of the Submit button, you can follow these steps:

Design the Layouts:
Create two layout XML files:
activity_main.xml: for the input form to enter student details.
activity_display_details.xml: for displaying student details in a table format.
activity_main.xml:

xml
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<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="16dp">

    <!-- Input fields -->
    <!-- Add EditText fields for each student detail -->
    <!-- Add a Submit button -->
    <!-- Ensure each view has an appropriate id -->

</RelativeLayout>
activity_display_details.xml:

xml
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<?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">

    <!-- Table layout to display student details -->
    <TableLayout
        android:id="@+id/tableLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:stretchColumns="*">

        <!-- Table rows will be added dynamically -->

    </TableLayout>

</LinearLayout>
Implement Java Code:

In MainActivity.java, handle the click event of the Submit button and pass the entered student details to the next activity.
In DisplayDetailsActivity.java, receive the student details and dynamically create table rows to display them.
Run Your Application:
Run your application on a device or emulator. Enter the student details in the input form and click the Submit button. You should be navigated to the next activity where the entered student details are displayed in a table format.

Here's a basic outline of how you can implement the Java code:

java
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// MainActivity.java

public class MainActivity extends AppCompatActivity {

    private EditText editTextName, editTextSurname, editTextClass, editTextGender, editTextHobbies, editTextMarks;
    private Button buttonSubmit;

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

        editTextName = findViewById(R.id.editTextName);
        // Initialize other EditText fields and button

        buttonSubmit = findViewById(R.id.buttonSubmit);
        buttonSubmit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // Get entered student details
                String name = editTextName.getText().toString();
                // Get other student details

                // Create an Intent to pass data to DisplayDetailsActivity
                Intent intent = new Intent(MainActivity.this, DisplayDetailsActivity.class);
                intent.putExtra("name", name);
                // Add other student details to the Intent
                startActivity(intent);
            }
        });
    }
}

// DisplayDetailsActivity.java

public class DisplayDetailsActivity extends AppCompatActivity {

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

        // Receive student details from intent
        Intent intent = getIntent();
        String name = intent.getStringExtra("name");
        // Receive other student details

        // Dynamically create table rows to display student details
        TableLayout tableLayout = findViewById(R.id.tableLayout);
        TableRow tableRow = new TableRow(this);
        tableRow.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT));

        TextView textViewName = new TextView(this);
        // Set text and other properties for each TextView
        textViewName.setText(name);
        // Add other TextViews for displaying student details

        tableRow.addView(textViewName);
        // Add other TextViews to the TableRow

        tableLayout.addView(tableRow);
    }
}
This is a basic example of how you can create an Android app to read student details and display them in another activity in table format. Adjust the code and layout as needed to fit your specific requirements.



Q2. Create a Simple calculator

ChatGPT
Creating a simple calculator app involves designing a layout with buttons representing digits, arithmetic operations, and a display screen to show the input and result. Here's a step-by-step guide to create a basic calculator app in Android:

Design the Layout:
Create a layout XML file (e.g., activity_main.xml) for the calculator interface.
xml
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<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!-- Display screen -->
    <TextView
        android:id="@+id/textViewDisplay"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="8dp"
        android:padding="8dp"
        android:textSize="24sp"
        android:textAlignment="textEnd"
        android:background="@color/lightGray"/>

    <!-- Buttons for digits and operations -->
    <!-- Example buttons for 0 to 9, +, -, *, /, and = -->
    <!-- You can add more buttons as needed -->
    <!-- Each button should have an appropriate onClick method -->

</RelativeLayout>
Implement Java Code:
In the MainActivity.java, define the behavior for button clicks to handle user input and perform calculations.
java
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public class MainActivity extends AppCompatActivity {

    private TextView textViewDisplay;
    private String input = "";

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

        textViewDisplay = findViewById(R.id.textViewDisplay);
    }

    public void onButtonClick(View view) {
        Button button = (Button) view;
        String buttonText = button.getText().toString();

        switch (buttonText) {
            case "=":
                calculate();
                break;
            case "C":
                clear();
                break;
            default:
                input += buttonText;
                textViewDisplay.setText(input);
        }
    }

    private void calculate() {
        // Implement calculation logic here
        // Parse the input string, perform arithmetic operations, and display the result
        // You can use the built-in methods like eval() or implement your own logic
        // Example: String result = String.valueOf(eval(input));
    }

    private void clear() {
        input = "";
        textViewDisplay.setText("");
    }
}
Add Button Click Events:
Define onClick methods for each button in the XML layout file (e.g., android:onClick="onButtonClick").
xml
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<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="7"
    android:onClick="onButtonClick"/>

<!-- Add buttons for other digits and operations -->