AI代码解释 publicKtFileparseKotlinToPsi(@NonNull File file){try{org.jetbrains.kotlin.com.intellij.openapi.project.Project ktProject=KotlinCoreEnvironment.Companion.createForProduction(()->{},newCompilerConfiguration(),CollectionsKt.emptyList()).getProject();this.psiFileFactory=PsiFileFactory.getInstance(...
openapi.project.Project ktProject = KotlinCoreEnvironment.Companion.createForProduction(() -> { }, new CompilerConfiguration(), CollectionsKt.emptyList()).getProject(); this.psiFileFactory = PsiFileFactory.getInstance(ktProject); return (KtFile) psiFileFactory.createFileFromText(file.getName(), ...
class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) val prefs = PreferenceManager.getDefaultSharedPreferences(this) if (prefs.getString("weather", ) != null) { val intent = Inte...
#1540 com.alibaba.fastjson2.JSONException: create instance error class kotlin.collections.EmptyList, offset 32 at com.alibaba.fastjson2.reader.ObjectReaderImplList.readJSONBObject(ObjectReaderImplList.java:461) ~[fastjson2-2.0.34.jar:na]...
class MessagesActivity : AppCompatActivity() { val viewModel: MessagesViewModel by viewModels() override fun onCreate(savedInstanceState: Bundle?) { // ❌ 危险的操作 lifecycleScope.launch { viewModel.userMessage.collect { messages -> listAdapter.submitList(messages) } } // ❌ 危险的操作 Lif...
},newCompilerConfiguration(), CollectionsKt.emptyList()).getProject();this.psiFileFactory = PsiFileFactory.getInstance(ktProject);return(KtFile) psiFileFactory.createFileFromText(file.getName(), KotlinLanguage.INSTANCE, readFileToString(file,"UTF-8")); ...
super.onCreate(savedInstanceState) val locked: Boolean if(savedInstanceState != null) locked = savedInstanceState.getBoolean("locked") else locked = false } 前面的结构呈现了一些样板代码,因为在 Java 开发中进行空检查是一种非常常见的操作(特别是在 Android 框架中,其中大多数元素都是可空的)。幸运的...
首先来看for循环,Java遍历某个队列,可以通过“for (item : list)”形式的语句进行循环操作。同样Kotlin也能使用类似形式的循环,区别在于把冒号“:”换成了关键字“in”,具体语句形如“for (item in list)”。下面是Kotlin对数组进行循环处理的代码例子:
)).create()Kotlin中则区分Kotlin和Java类，并做了语法规范：val kotlinClass : KClass<LocalDate> = LocalDate::classval javaClass : Class<LocalDate> = LocalDate::class.java所以在Kotlin，你不得不写成：val gson = GsonBuilder().registerTypeAdapter(LocalDate::class.java, LocalDateAdapter()).create...
创建一个 UserController,包含 createUser、getUser 两个接口。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 import com.kotlin.tutorial.user.User import com.kotlin.tutorial.user.service.IUserService import com.kotlin.tutorial.web.dto.HttpResponse import org.springframework.beans.factory.annotation....