public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); savedInstanceState.getBoolean("locked"); } 在Java 中,这段代码将编译正常,访问 null 对象将导致应用在运行时崩溃并抛出NullPointerException。现在让我们来看看相
创建出来一个闭合区间这个与下边的4准确的说应该是是属于Range var numArr = 1 .. 9 //打印出来 1-9 var charArr = 'a' .. 'z' // 打印出来 a - z 1. 2. 4. 使用 until 创建开区间数组 创建出来一个左闭右开的数组 [n,m), var intRange = 1 until 9 //数组中只有1-8 1. 5. 使用...
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(...
Duration.between(beginTime, endTime); long days = between.toDays(); List<TopicShardingTime> list = easyQuery.queryable(TopicShardingTime.class) .where(o->o.rangeClosed(TopicShardingTime::getCreateTime,beginTime,endTime)) .orderByAsc(o -> o.column(TopicShardingTime::getCreateTime)) .toList...
//操作符 TokenSet OPERATIONS = TokenSet.create(AS_KEYWORD, AS_SAFE, IS_KEYWORD, IN_KEYWORD, DOT, PLUSPLUS, MINUSMINUS, EXCLEXCL, MUL, PLUS, MINUS, EXCL, DIV, PERC, LT, GT, LTEQ, GTEQ, EQEQEQ, EXCLEQEQEQ, EQEQ, EXCLEQ, ANDAND, OROR, SAFE_ACCESS, ELVIS, RANGE, EQ, MULTEQ...
SQLDelight - Generates typesafe Kotlin APIs from SQL sqlsqldelightkotlin-multiplatform UpdatedMar 25, 2025 Kotlin A highly customizable calendar view and compose library for Android and Kotlin Multiplatform. androidkotlindatecalendardatepickerdate-range-pickeryear-calendarcomposeheatmap-calendarcalendarviewweek-ca...
IntProgression var10000 = RangesKt.step(RangesKt.downTo(10, 1), 2); 这行代码就创建了两个IntProgression临时对象,增加了额外的开销。 Kotlin检查工具的探索 Kotlin的隐藏开销不止上面列举的几个,为了避免开销,我们需要实现这样一个工具,实现Kotlin语法的检查,列出不规范的代码并给出修改意见。同时为了保证开发...
With the Kotlin Kernel for notebooks, you gain access to a range of features like: Accessing APIs within cells and using APIs for handling outputs. Retrieving information from previously executed code snippets, allowing quick project exploration. ...
intTextField(uiSettings::editorTabLimit, columns = 4, range = EDITOR_TABS_RANGE) For password text fields, there is no factory function available, so you need to use (): val passwordField = JPasswordField() val panel = panel { // ... row { passwordField() } } To specify the size ...
Creates a grouped rows range to perform operations on them likeenabled,enabledIfetc. All rows use the parent grid. Panel.group UI DSL Showcase Tab: Groups (Sources:DemoGroups) Adds a panel with an independent grid, optional title, and some vertical space above and below the group. ...