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‎17. RegistrationDatabase/RegistrationDatabase/app/build.gradle.kts

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plugins {
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id("com.android.application")
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}
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android {
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namespace = "com.example.registrationdatabase"
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compileSdk = 34
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defaultConfig {
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applicationId = "com.example.registrationdatabase"
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minSdk = 24
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targetSdk = 34
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versionCode = 1
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versionName = "1.0"
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testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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isMinifyEnabled = false
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proguardFiles(
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getDefaultProguardFile("proguard-android-optimize.txt"),
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"proguard-rules.pro"
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)
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}
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}
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compileOptions {
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sourceCompatibility = JavaVersion.VERSION_1_8
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targetCompatibility = JavaVersion.VERSION_1_8
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}
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}
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dependencies {
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implementation("androidx.appcompat:appcompat:1.6.1")
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implementation("com.google.android.material:material:1.10.0")
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implementation("androidx.constraintlayout:constraintlayout:2.1.4")
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testImplementation("junit:junit:4.13.2")
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androidTestImplementation("androidx.test.ext:junit:1.1.5")
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androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
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}

‎17. RegistrationDatabase/RegistrationDatabase/app/proguard-rules.pro

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# Add project specific ProGuard rules here.
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# You can control the set of applied configuration files using the
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# proguardFiles setting in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}
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# Uncomment this to preserve the line number information for
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# debugging stack traces.
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#-keepattributes SourceFile,LineNumberTable
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# If you keep the line number information, uncomment this to
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# hide the original source file name.
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#-renamesourcefileattribute SourceFile

‎17. RegistrationDatabase/RegistrationDatabase/app/src/androidTest/java/com/example/registrationdatabase/ExampleInstrumentedTest.java

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package com.example.registrationdatabase;
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import android.content.Context;
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import androidx.test.platform.app.InstrumentationRegistry;
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import androidx.test.ext.junit.runners.AndroidJUnit4;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import static org.junit.Assert.*;
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/**
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* Instrumented test, which will execute on an Android device.
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*
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* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
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*/
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@RunWith(AndroidJUnit4.class)
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public class ExampleInstrumentedTest {
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@Test
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public void useAppContext() {
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// Context of the app under test.
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Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
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assertEquals("com.example.registrationdatabase", appContext.getPackageName());
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}
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}

‎17. RegistrationDatabase/RegistrationDatabase/app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools">
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<application
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android:allowBackup="true"
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android:dataExtractionRules="@xml/data_extraction_rules"
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android:fullBackupContent="@xml/backup_rules"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/Theme.RegistrationDatabase"
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tools:targetApi="31">
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<activity
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android:name=".MainActivity"
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android:exported="true">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<meta-data
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android:name="preloaded_fonts"
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android:resource="@array/preloaded_fonts" />
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</application>
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</manifest>

‎17. RegistrationDatabase/RegistrationDatabase/app/src/main/java/com/example/registrationdatabase/MainActivity.java

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package com.example.registrationdatabase;
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import androidx.appcompat.app.AppCompatActivity;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.Button;
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import android.widget.EditText;
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import android.widget.RadioButton;
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import android.widget.RadioGroup;
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import android.widget.TextView;
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import android.widget.Toast;
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public class MainActivity extends AppCompatActivity {
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RegistrationDatabase rdb;
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EditText id, name, rollNo, section;
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Button submit, delete, display;
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TextView displaydb;
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RadioGroup radioGroup;
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RadioButton maleButton, femaleButton;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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id = findViewById(R.id.id);
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name = findViewById(R.id.name);
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rollNo = findViewById(R.id.rollNo);
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section = findViewById(R.id.section);
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displaydb = findViewById(R.id.displaydb);
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submit = findViewById(R.id.submit);
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delete = findViewById(R.id.delete);
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display = findViewById(R.id.display);
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radioGroup = findViewById(R.id.radioGroup);
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maleButton = findViewById(R.id.maleButton);
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femaleButton = findViewById(R.id.femaleButton);
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rdb = new RegistrationDatabase(getApplicationContext(),"REGISTRATION",null,1);
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}
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public void submit(View view) {
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String id1 = id.getText().toString();
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String name1 = name.getText().toString();
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String rollNo1 = rollNo.getText().toString();
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String section1 = section.getText().toString();
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rdb.insertValues(id1,name1,rollNo1,section1);
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Toast.makeText(getApplicationContext(),"Submitted",Toast.LENGTH_LONG).show();
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}
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public void delete(View view) {
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String idD = id.getText().toString();
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rdb.deleteValues(idD);
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Toast.makeText(getApplicationContext(),"Deleted",Toast.LENGTH_LONG).show();
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}
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public void display(View view) {
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String tableData1 = rdb.displayDatabase();
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displaydb.setText(tableData1);
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}
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}

‎17. RegistrationDatabase/RegistrationDatabase/app/src/main/java/com/example/registrationdatabase/RegistrationDatabase.java

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package com.example.registrationdatabase;
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import android.content.Context;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteOpenHelper;
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import android.view.View;
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import androidx.annotation.Nullable;
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public class RegistrationDatabase extends SQLiteOpenHelper {
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public RegistrationDatabase (@Nullable Context context,@Nullable String name,@Nullable SQLiteDatabase.CursorFactory factory, int version){
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super(context,name,factory,version);
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}
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@Override
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public void onCreate(SQLiteDatabase sqLiteDatabase) {
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// SQLiteDatabase sqldb = this.getWritableDatabase();
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sqLiteDatabase.execSQL("CREATE TABLE REGISTRATION (id VARCHAR(20),name VARCHAR(20),rollNo VARCHAR(20)," +
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"section VARCHAR(20))");
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}
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@Override
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public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
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}
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public void insertValues(String id, String name, String rollNo, String section){
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SQLiteDatabase sqLiteDatabase = this.getWritableDatabase();
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sqLiteDatabase.execSQL("INSERT INTO REGISTRATION VALUES(?,?,?,?)",new String[]{id,name,rollNo,section});
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// sqLiteDatabase.close();
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}
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public void deleteValues(String id){
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SQLiteDatabase sqLiteDatabase = this.getWritableDatabase();
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sqLiteDatabase.delete("REGISTRATION","id = ?",new String[] {id});
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}
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public String displayDatabase(){
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String tableData = "";
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SQLiteDatabase sqLiteDatabase = this.getReadableDatabase();
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Cursor cursor = sqLiteDatabase.rawQuery("SELECT * FROM REGISTRATION",null);
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while (cursor.moveToNext()){
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String id = cursor.getString(0);
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String name = cursor.getString(1);
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String rollNo = cursor.getString(2);
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String section = cursor.getString(3);
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tableData = "Id:"+id+"\n"+"Name:"+name+"\n"+"ROll no."+rollNo+"\n"+"Section:"+section+"\n";
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}
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// sqLiteDatabase.close();
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return tableData;
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}
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}

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