“when” statement in Kotlin is similar to using “switch-case” statements for those familiar with using other programming languages like Java and C#.ĭepending on the different values of the constant or variable within the when expression, different statements can be executed.

The correct syntax for creating an array with explicit values is to use arrayOf or intArrayOf.Primarily, there are 4 types of control flow constructs provided by Kotlin i.e. I will show you the examples of for loop in Kotlin. For example, a range, array, string, etc. The for loop in Kotlin can be used to iterate through anything that provides an iterator. In Kotlin, the for loop works like the forEach in C. However, in the code you've written so far, you've mostly worked with data consisting of a single value, like a number or piece of text displayed on the screen. So you've created a 3x3 matrix that is completely filled with the number 23. Generally, the for loop is used to iterate through the given block of code for the specified number of times. Introduction In many apps, you've probably seen data displayed as a list: contacts, settings, search results, etc. Your lambda that you pass to that IntArray constructor is throwing away a bunch of pointless Int values and then returning 23 for each item. 2 days ago &0183 &32 It is necessary to output a line without moving to a new line, enter data on the same line, then output other data on the same line, and only then transfer to a new line. You are also instantiating your array incorrectly to begin with. So in this case it is the array index, and your lambda is returning 0 and 1 for even and odd indices respectively. The lambda that you pass to the IntArray constructor has an input parameter that represents the array index, and the return value of your lambda is what will be put into the array at that index.

You are creating a brand new group of array objects by calling the Array and IntArray constructors. Isn't doing anything to the original Array that result is pointing at.

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