an each char sequence representing a view over the window of the given size among all values produced by selector function applied to each character in the char sequence. Returns a string containing characters of the original string at the specified range of indices. using the specified locale. Returns a hash code value for the object. Strings 'kotlin is easy' and 'Kotlin runs on JVM' are not equal. Returns index of the first character matching the given predicate, or -1 if the char sequence does not contain such character. Returns a list of pairs built from the characters of this and the other char sequences with the same index In Kotlin, all strings are objects of String class. with the suffix removed. Parses the string as an UByte number and returns the result and its index in the original char sequence. Kotlin String Strings are a sequence of characters. The nice thing about standard libraries is that functions from it can be replaced by intrinsics if so desired. A possibility is to call the Regex constructor: Regex("a[bc]+d?") or null if the string is not a valid representation of a number. Returns a new string obtained by replacing each substring of this char sequence that matches the given regular expression   val lines = this.split(“n”) Fortunately, Kotlin has this handled as well. Returns the length of this char sequence. and value is provided by the valueTransform function applied to characters of the given char sequence. Returns zero if this object is equal applied to each character in the char sequence or null if there are no characters. to the specified other object, a negative number if it's less than other, or a positive number and appends only the non-null results to the given destination. using the specified keySelector function to extract a key from each character. Xtend has solved this really nicely: For Uses the provided format as a format string and returns a string obtained by substituting the specified arguments, or null if the string is not a valid representation of a number. Performs the given action on each character. Intriniscs only work for constant strings, which is not that useful. Returns a string with characters in reversed order. Accumulates value starting with the first character and applying operation from left to right Finds the index of the last occurrence of any of the specified strings in this char sequence, The general contract of hashCode is: Returns a string obtained by concatenating this string with the string representation of the given other object. starting at the specified startIndex and ending right before the specified endIndex. Parses the string as an UInt number and returns the result Populates and returns the destination mutable map with key-value pairs for each character of the given char sequence, Groups values returned by the valueTransform function applied to each character of the original char sequence Help is never far away – consult extensive community resources   return lines map { it.replaceAll("^\s*|", “”) } join “n” Returns a list containing successive accumulation values generated by applying operation from left to right Returns a copy of this string converted to lower case using the rules of the specified locale. = null, hint: String? If this and other have no common prefix, returns the empty string. The returned list has length of the shortest char sequence. Returns a single list of all elements yielded from results of transform function being invoked on each character Returns the largest character or null if there are no characters. Replace part of string after the last occurrence of given delimiter with the replacement string. Splits the original string into pair of strings, If the string does not contain the delimiter, returns missingDelimiterValue which defaults to the original string. In many use cases, the developer will know whether to expect line breaks in the dynamic parts, and can choose accordingly. Implementations must fulfil the following Parses the string as a Long number and returns the result Returns a lazy Iterable that wraps each character of the original char sequence Returns true if this char sequence ends with the specified character. Returns a random character from this char sequence using the specified source of randomness, or null if this char sequence is empty. String型 Java編では String greeting = "こんにちは" という風にString型を宣言していました。 これをKotlinで書くと、 val greeting: String = "こんにちは" となります。 また、Kotlinは自動的に代入される型を推論してくれるので、 と書くことも by the key returned by the given keySelector function applied to the character Returns the index within this string that is offset from the given index by codePointOffset code points. Returns the index within this char sequence of the last occurrence of the specified character, Ensures that this value is not less than the specified minimumValue. among all values produced by selector function applied to each character in the char sequence or null if there are no characters. taking care not to split surrogate pairs. Returns true if this CharSequence has Unicode surrogate pair at the specified index. Removes the given delimiter string from both the start and the end of this string Returns the index within this char sequence of the first occurrence of the specified string, Parses the string as a signed UByte number and returns the result. and puts to the destination map each group key associated with a list of corresponding values. Parses the string as an UInt number and returns the result. with the result of the given function transform that takes MatchResult and returns a string to be used as a applied to each character and returns a map where each group key is associated with a list of corresponding characters. It’s useful, yes, but it can’t be done if it doesn’t work properly. Returns a List containing all characters. with the prefix removed. the first and the last lines if they are blank (notice difference blank vs empty). I agree that there should be an option to do the trimming at runtime. Swift’s approach is so much more elegant… The indentation of the string content is the same as that of the ending quotes. and appends only the non-null results to the given destination. Their API’s are kind of frozen by default anyway. Kotlin strings are mostly similar to Java strings but has some new added functionalities. and returns the char sequence itself afterwards. Replace the part of string at the given range with the replacement string. So, Kotlin interprets this as statusCode == 400 and so on until it reaches the else condition if nothing is matched. Returns true if this char sequence starts with the specified character. The String class in Kotlin contains strings of characters. is a string literal. } Returns a string having trailing characters from the chars array removed. All string literals in Kotlin programs, such as "abc", are implemented as instances of this class. Returns a list containing only the non-null results of applying the given transform function starting from the specified startIndex and optionally ignoring the case. if and only if it starts with and ends with the delimiter. Replace part of string after the first occurrence of given delimiter with the replacement string. Appends all characters matching the given predicate to the given destination. Iterator for characters of the given char sequence. If this and other have no common suffix, returns the empty string. Returns a random character from this char sequence using the specified source of randomness. Returns true if this char sequence contains the specified other sequence of characters as a substring. starting from the specified startIndex and optionally ignoring the case. where key is the character itself and value is provided by the valueSelector function applied to that key. Applies the given transform function to each character and its index in the original char sequence Returns the largest value among all values produced by selector function All string literals in Kotlin programs, such as "abc", are Returns the first character matching the given predicate, or null if character was not found. using the default locale. Pads the string to the specified length at the beginning with the specified character or space. An array of characters is called a string. or the original string if it's empty or already starts with a title case letter. Returns the longest string prefix such that this char sequence and other char sequence both start with this prefix, Returns the last character matching the given predicate. by the key returned by the given keySelector function applied to the character Returns this char sequence if it's not empty Creates a Grouping source from a char sequence to be used later with one of group-and-fold operations Uses this string as a format string and returns a string obtained by substituting the specified arguments, So if you’re debugging this code, and you want to log the exact query string, or copy paste it into an sqlite3 (or your SQL client of choice) to play around with it, it’s going to be ugly. I don’t have real numbers for this but I’d imagine that in most cases a multiline string in a dynamic trimMargin is just a bug and not intended, so maybe changing this is not as bad of a breaking change than it seems. Returns true if this char sequence is not empty. Returns the largest value according to the provided comparator Returns true if no characters match the given predicate. Returns a string having leading and trailing characters matching the predicate removed. Populates and returns the destination mutable map with key-value pairs, Doesn't affect a line if it doesn't contain marginPrefix except the first and the last blank lines. Appends all characters not matching the given predicate to the given destination. Parses the string as a ULong number and returns the result. and returns a map where each group key is associated with a list of corresponding values. Kotlin では main メソッドのためにわざわざクラスを作る必要がありません。 また、 Kotlin では println がメソッドではなくクラスに属さない関数として実装されています。 そのため System.out を書く必要がありません。 関数は static メソッドのようなものなので、 static も書く必要がありません。 Returns this char sequence if it is not empty and doesn't consist solely of whitespace characters, Literals of the kotlin string are implemented as instances of this type. Kotlin 1.3.40 will actually support intrinsics for these functions, see https://youtrack.jetbrains.com/issue/KT-17755. Returns the single character matching the given predicate, or null if character was not found or more than one character was found. Returns the last character matching the given predicate, or null if no such character was found. Kotlin側で取得した値を、EditTextのtextに挿入したいのですが、うまくいきません。 環境AndroidStudio3.0.1Kotlin1.1.15fuel 試したことtest.kt URL.httpGet().header().responseObject(Item) { re Powered by Discourse, best viewed with JavaScript enabled, return lines map { it.replaceAll("^\s*|", “”) } join “n”, Multiline string literal indent handling is unconvient, https://eclipse.org/xtend/documentation/203_xtend_expressions.html#templates, https://youtrack.jetbrains.com/issue/KT-17755. Returns a Map containing the characters from the given char sequence indexed by the key implemented as instances of this class. Returns the number of characters matching the given predicate. Performs the given action on each character, providing sequential index with the character, If the string does not contain the delimiter, returns missingDelimiterValue which defaults to the original string. Otherwise, returns this string. If the string does not contain the delimiter, returns missingDelimiterValue which defaults to the original string. Returns the first character matching the given predicate. starting from the specified startIndex and optionally ignoring the case. Yes I see how the current implementation can break existing code. Always and without exception, checked and optimized at compile time. We can create one in several ways. Returns a string having leading and trailing whitespace removed. and value is the character itself. Converts a String into an UTF-8 array. Returns a list of pairs of each two adjacent characters in this char sequence. Strings are story sequences. Parses the string as a signed Byte number and returns the result Groups characters of the original char sequence by the key returned by the given keySelector function Returns a string having leading characters matching the predicate removed. Returns a string having trailing whitespace removed. Returns true if this char sequence contains at least one match of the specified regular expression regex. among all values produced by selector function applied to each character in the char sequence or null if there are no characters. Replace part of string before the last occurrence of given delimiter with the replacement string. or null if the string is not a valid representation of a number. Accumulates value starting with the last character and applying operation from right to left Returns the range of valid character indices for this char sequence. This create a very strange code or a very strange string. Returns a list containing successive accumulation values generated by applying operation from left to right Returns a substring specified by the given range of indices. to each character and its index in the original char sequence. Compares this object with the specified object for order. Parses the string as a Short number and returns the result Regular expressions are instances of the kotlin.text.Regex class. Parses the string as a java.math.BigDecimal number and returns the result. or the result of calling defaultValue function if the char sequence is empty. If locale is null then no localization is applied. to each character with its index in the original char sequence and current accumulator value. Have you ever? EditText Multiline