<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".SharedPreferencesExample"
    android:padding="16dp"
    android:gravity="center"
    android:orientation="vertical">

    <EditText
        android:id="@+id/input"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter your message" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:padding="16dp"
        android:gravity="center">

        <Button
            android:id="@+id/b1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Save Data"
            android:textColor="@color/colorWhite"
            android:textAllCaps="false"
            android:background="@color/colorOrange"
            android:padding="16dp"
            android:layout_margin="16dp" />

        <Button
            android:id="@+id/b2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Display Data"
            android:textColor="@color/colorWhite"
            android:textAllCaps="false"
            android:background="@color/colorOrange"
            android:padding="16dp"
            android:layout_margin="16dp" />

    </LinearLayout>

    <TextView
        android:id="@+id/textDisplay"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textColor="@color/colorAccent"
        android:textSize="20dp"
        android:padding="16dp"
        android:gravity="center" />

</LinearLayout>

                                    
                                  

                                    
                                        package com.example.widgets;

import android.content.Context;
import android.content.SharedPreferences;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class SharedPreferencesExample extends AppCompatActivity {

    EditText editText;
    Button save, display;
    TextView textView;

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

        editText = findViewById(R.id.input);
        save = findViewById(R.id.b1);
        display = findViewById(R.id.b2);
        textView = findViewById(R.id.textDisplay);

        save.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                String msg = editText.getText().toString().trim();

                if (!msg.equals("")) {
                    SharedPreferences sharedPreferences = getSharedPreferences("Shared Preferences", Context.MODE_PRIVATE);
                    SharedPreferences.Editor editor = sharedPreferences.edit();
                    editor.putString("message", msg);
                    editor.apply();
                    Toast.makeText(getApplicationContext(), "Data saved successfully", Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(getApplicationContext(), "Data is empty", Toast.LENGTH_SHORT).show();
                }
            }
        });

        display.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                SharedPreferences sharedPreferences = getSharedPreferences("Shared Preferences", Context.MODE_PRIVATE);
                String dispMsg = sharedPreferences.getString("message", "");
                textView.setText(dispMsg);
            }
        });
    }
}
                                    
                                  

                                    
                                        package com.example.widgets

import android.content.Context
import android.content.SharedPreferences
import android.os.Bundle
import android.view.View
import android.widget.Button
import android.widget.EditText
import android.widget.TextView
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity

class SharedPreferencesExample : AppCompatActivity() {

    private lateinit var editText: EditText
    private lateinit var save: Button
    private lateinit var display: Button
    private lateinit var textView: TextView

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_shared_preferences_example)

        editText = findViewById(R.id.input)
        save = findViewById(R.id.b1)
        display = findViewById(R.id.b2)
        textView = findViewById(R.id.textDisplay)

        save.setOnClickListener {
            val msg = editText.text.toString().trim()

            if (msg.isNotEmpty()) {
                val sharedPreferences = getSharedPreferences("Shared Preferences", Context.MODE_PRIVATE)
                val editor = sharedPreferences.edit()
                editor.putString("message", msg)
                editor.apply()
                Toast.makeText(applicationContext, "Data saved successfully", Toast.LENGTH_SHORT).show()
            } else {
                Toast.makeText(applicationContext, "Data is empty", Toast.LENGTH_SHORT).show()
            }
        }

        display.setOnClickListener {
            val sharedPreferences = getSharedPreferences("Shared Preferences", Context.MODE_PRIVATE)
            val dispMsg = sharedPreferences.getString("message", "")
            textView.text = dispMsg
        }
    }
}