String Templates in Kotlin
From the Kotlin cheat sheet · Getting Started · verified Jul 2026
String Templates
String interpolation and manipulation
kotlin
// String templates
val name = "Alice"
val age = 30
val message = "Hello, $name! You are $age years old."
val expression = "Next year you'll be ${age + 1}"
// Multiline strings
val multiline = """
|First line
|Second line
|Third line
""".trimMargin()
val rawString = """
No escaping needed:
\
Preserves formatting
"""
// String operations
val str = "Kotlin"
println(str.length) // 6
println(str.uppercase()) // KOTLIN
println(str[0]) // K
println(str.substring(0, 3)) // Kot💡 Use $ for simple variables, ${} for expressions
⚡ Triple quotes for multiline strings without escaping
📌 trimMargin() removes leading whitespace with | delimiter
🟢 buildString is efficient for complex string construction
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