Kotlin Program: Filter list of strings with lambda expression

Kotlin Lambda: Exercise-5 with Solution

Write a Kotlin program that implements a lambda expression to filter a list of strings. It returns only strings starting with the letter 'K'.

Sample Solution:

Kotlin Code:

fun main() {
    val strings = listOf("Kotlin", "Java", "Kotlin Programming", "Python", "Kotlin Language")

    val filteredList = strings.filter { it.startsWith("K") }

    println("Filtered List:")
    filteredList.forEach { println(it) }
}

Sample Output:

Filtered List:
Kotlin
Kotlin Programming
Kotlin Language

Explanation:

In the above exercise -

• We have a list of strings called strings. We use the "filter()" function on the strings list and provide a lambda expression { it.startsWith("K") } as the filter condition.
• Inside the lambda expression, we use the startsWith function to check if each string in the list starts with the letter 'K'. If it does, the string is included in the filtered list.
• Finally, we print the filtered list using a combination of println and forEach to iterate over each string in the filtered list.

Kotlin Editor:

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