Audhil

//  https://blog.udemy.com/java-data-types/?utm_source=adwords&utm_medium=udemyads&utm_campaign=DSA_Catchall_la.EN_cc.INDIA&utm_content=deal4584&utm_term=_._ag_82569850245_._ad_437477497173_._kw__._de_c_._dm__._pl__._ti_dsa-449490803887_._li_9061910_._pd__._&matchtype=b&gclid=CjwKCAjw0_T4BRBlEiwAwoEiAd5tg5iZ8c_k9pQxw5pX5HJoQKHjCc21ylREUKzHurajr3l7v2u5LhoCvKsQAvD_BwE
    public static void main(String[] args) {
        byte d = 127;   //  2^7 = -128 -> 2^7-1 = 127 - 8 bits = 1 byte
        short sh = 32767;  //  16 bits = 2 bytes
        int in = 2147483647;   //  32 bits = 4 bytes
        long lo = 9223372036854775807L; //  64 bits = 8 bytes
        float fl = 23.44f;  //  32 bits = 4 bytes
        double db = 342.4; //  64 bits = 8 bytes
        char ch = 'a';  //  16 bits - 2 byte
        boolean bool = false;   //  1 bit

Audhil

@AndroidEntryPoint
class MainActivity : AppCompatActivity() {
    //  extn func from activity-ktx lib
    val viewModel: MainViewModel by viewModels()
}

Audhil

class MainViewModel
@ViewModelInject
constructor() : ViewModel()

Audhil

implementation "androidx.hilt:hilt-lifecycle-viewmodel:1.0.0-alpha01"
kapt "androidx.hilt:hilt-compiler:1.0.0-alpha01"

Audhil

@AndroidEntryPoint
class MainActivity : AppCompatActivity() {
  
    @Inject
    lateinit var dummyClass: DummyClass
}

Audhil

@Module
@InstallIn(ApplicationComponent::class)
class APIModule {
    
    @Provides
    fun giveAPIService(): API = Retrofit.Builder().build().create(API::class.java)
}

Audhil

class DummyClass
@Inject
constructor()

Audhil

@HiltAndroidApp
class NewsApplication : Application()

Audhil

//  project level build.gradle
classpath 'com.google.dagger:hilt-android-gradle-plugin:{latest_version}'

Audhil

//  app/build.gradle
implementation "com.google.dagger:hilt-android:{latest_version}"
kapt "com.google.dagger:hilt-android-compiler:{latest_version}"