Scala find the index number of a string
Webdef mkString(sep: String): String. Displays all elements of this immutable set in a string using a separator string. 35: def product: A. Returns the product of all elements of this immutable set with respect to the * operator in num. 36: def size: Int. Returns the number of elements in this immutable set. 37: def splitAt(n: Int): (Set[A], Set[A]) WebApr 4, 2024 · Approach: The problem can be solved by searching for anagrams of S from the given array of strings and then, for every such string, find the minimum number of character swaps required to convert the string to S. Follow the steps below to solve the problem: Traverse the array of strings and for each string present in the array, check if it is an …
Scala find the index number of a string
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WebSep 30, 2024 · In this example, The minimum absolute difference will correspond to the nearest value to the given number. Thus, the index of minimum absolute difference is 2 and the element from the original array at index 2 is 1. Thus, 1 … WebOct 27, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.
WebI have a ArrayList> and it looks something like this And what I want to do is search through it to find if any model number equals car2 and get the index of the object (in this case 1) so i can print out the name. Whats the best way to do this? WebJan 11, 2024 · 1. You can use zipWithIndex () together with filter () to search for an index. val str = "12334563" str.toList.zipWithIndex.filter ( (x) => x._1 == '3') res9: List [ (Char, Int)] = …
WebIf an optional field value isn't set, a default value is used. For simple types, you can specify your own default value, as we've done for the phone number type in the example. Otherwise, a system default is used: zero for numeric types, the empty string for strings, false for bools. WebFeb 3, 2024 · Parameters: The method accepts two parameters, one mandatory and other optional. Return Value: It returns an integer which is the index where the substring is found for the first time in the string. Example 1: object myObject { def main ( args: Array[String]) { val string1 = "scala programming language " val indexVal = string1. indexOf ("lang ...
WebApr 10, 2024 · A Scala substring example: I ran into a situation today where I wanted to get a string after the Nth occurrence of another string, in this case after the 6th occurrence of a “:” character. There are probably many ways to determine the Nth occurrence of a string in another string, but as a quick example, this is what I did. First, I started with this string:
WebOct 14, 2024 · scala> List(1,2,3,4,5,6).indexWhere(element => element > 3) res4: Int = 3 scala> List(1,2,3,4,5,6).lastIndexWhere(element => element > … ohana software webinarsWebCast the receiver object to be of type T0.. Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expression List(1).asInstanceOf[List[String]] will not. In the latter example, because the type … mygreatcalls comWebMay 16, 2024 · Output: 6. Example 2: In this example, we will try to get the first index of the multiple elements using the match() function. So, to do this we will just give the values as an argument to the match() function. In our case, we will try to … my great call phoneWebc: scala.collection.immutable.Map [String,Int] = Map (Arpit -> 2, Anand -> 3) A Map is created with two values in it. scala> c.filter (x=>x._1 == "A") res31: scala.collection.immutable.Map [String,Int] = Map () We use the filter condition to check and if it satisfies it produces the result or else Null is returned. my great call plansWebThere is no direct equivalent in scala. The closest thing you will find is the usage of _*, which works on vararg methods only. By example, here is an example of a vararg method: def hello( names: String*) { println( "Hello " + names.mkString(" and " ) ) } which can be used with any number of arguments: mygreatcall sign inWebAug 18, 2024 · About the : character in the method names. Note that during these operations the : character is always next to the old (original) sequence. I use that as a way to remember these methods. The correct technical way to think about this is that a Scala method name that ends with the : character is right-associative, meaning that the method comes from … my greatcall sign inWebApr 14, 2024 · Output: 2. Input: str = “GFG”, ch = ‘e’, N = 2. Output: -1. Recommended: Please try your approach on {IDE} first, before moving on to the solution. Approach: Traverse the string character by character. Check for each character if it matches with the given character. Increment the count by 1, if it matches with the given character. ohana shack fresno menu