David Mbochi NjongeFeb 02, 2024KotlinKotlin Lock When working with multithreaded applications, we need to ensure that access to shared resources is managed to avoid inconsistent data. Synchronization is the approach that we usually use when we want to control access to shared resources in our app...
I have properties file added to resources folder, want to read proprerties file using kotlin Project: I tried the same using java, i was able to achieve from the below code JAVA: this.getClass().getClassLoader().getResource("app.properties").getPath(); I just need the simila...
String templatingis a nice feature in Kotlin. It allows us to embed expressions or variables into a literal string, and Kotlin evaluates them, such as“The value is: $variable”and“42 x 42 = ${42 * 42}”. Another member of Kotlin’s string family is theraw string. We can easily pu...
And to clean up resources in theonLoadReset()method you also useswapCursor(), this time passing in anullvalue: publicvoidonLoaderReset(Loader<Cursor>loader){((SimpleCursorAdapter)this.getListAdapter()).swapCursor(null);} Use the Support Library for older Android versions ...
To use this, add this to your gradle build file: implementation 'org.osmdroid:osmdroid-shape:VERSION' In Kotlin val folder: List<Overlay> = ShapeConverter.convert(mapView, File(myshape)) mapView.overlayManager.addAll(folder) mapView.invalidate() Where myshape is a .shp file somewhere on th...
原文: https://howtodoinjava.com/spring-webflux/reactive-websockets/ 在这个 spring webflux websocket 示例中,学习使用 spring webflux 创建支持客户端和服务器之间的 websocket 连接的响应式应用程序。 websocket 是Web 浏览器和服务器之间的双向全双工持久连接。 建立连接后,它将保持打开状态,直到客户端或服务器...
Kotlin write file with PrintWriterPrintWriter prints formatted representations of objects to a text-output stream. writefile.kt package com.zetcode import java.io.File fun main() { val fileName = "src/resources/myfile.txt" val myfile = File(fileName) myfile.printWriter().use { out -> out...
To parse JSON in Kotlin, you can use the JSONObject class from the org.json package. This class provides methods for parsing JSON strings and converting them to JSONObjects and JSONArrays. Here's an example of how you can parse a JSON string in Kotlin: import org.json.JSONObject fun ...
Because these requests must be closed to free up resources, we enclose the request in a try-with-resources provided by use(). 5. Verifying the HttpRequest In our test case, we asserted what was returned as the MockServer response. However, there are situations where we may want to verify...
g.drawString(msg, (boardWidth - fontMetrics.stringWidth(msg)) / 2, boardHeight / 2) } ThegameOvermethod draws "Game Over" message in the middle of the window. We use rendering hints to draw the message smoothly. We use font metrics to get the size of the message. ...