Able to create subclasses and understand how they inherit from each other.
Able to define a Kotlin class, create an object instance from it, and access its properties and methods.Familiar with basic Kotlin programming concepts from Unit 1 of the Android Basics in Kotlin course: the main() function, functions arguments and return values, variables, data types and operations, as well as control flow statements.Familiar with using the Kotlin Playground for creating and editing Kotlin programs.In this codelab, you will use the Kotlin Playground to become familiar with lists in Kotlin and create a program for ordering different variations of noodle soup. Learning how to create and use lists is an important programming concept to add to your toolbox, and it will enable you to create more sophisticated apps. For example, there could be a list of news articles, songs, calendar events, or social media posts within an app. In programming, lists are also very useful. In Java, vararg parameters must be declared as the last parameter.It's common to make lists for all sorts of situations in your everyday life such as a list of things to do, a list of guests for an event, a wish list, or a grocery list. Basically, it copies all elements from the original array to a new one and passes the copied one to the sum() function. Index 13 and 14 are loading two parameters into the operand stack and then passing them to the pyOf(int, int) method. Then it will pass the new array as the vararg parameter: 12: aload_0 // loads the intġ5: invokestatic #71 // Method java/util/pyOf:([II)[I Kotlin will use the pyOf(array, length) method to first create a copy of the spreading array.
Moreover, when using the spread operator: val numbers = intArrayOf(1, 2) Also, the ACC_VARARGS flag specifies that the function accepts a variable-length parameter. After that, we can take a peek at the generated bytecode via javap: $ javap -c -p -v įlags: (0x0099) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_VARARGSĪs shown above, the vararg parameter is defined as a vararg in Java.
0 kommentar(er)
