Scala Programming: Create a new string from a given string swapping the last two characters of the given string
Scala Programming String Exercise-20 with Solution
Write a Scala program to create a new string from a given string swapping the last two characters of the given string. The length of the given string must be two or more.
Sample Solution:
Scala Code:
object Scala_String {
def lastTwo(str1: String): String = {
if (str1.length() < 2) return str1;
return str1.substring(0, str1.length - 2) + str1.charAt(str1.length - 1) + str1
.charAt(str1.length - 2);
}
def main(args: Array[String]): Unit = {
var str1 ="String";
println("The given strings is: " + str1);
println("The string after swap last two characters are: " + lastTwo(str1));
str1 ="Scala";
println("The given strings is: " + str1);
println("The string after swap last two characters are: " + lastTwo(str1));
}
}
Sample Output:
The given strings is: String The string after swap last two characters are: Strign The given strings is: Scala The string after swap last two characters are: Scaal
Scala Code Editor :
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Previous: Write a Scala program to append two given strings such that, if the concatenation creates double characters then omit one of the characters.
Next: Write a Scala program to read a string and return true if it ends with a specified string of length 2.
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