Scala Programming: Check whether a prefix string creates using the first specific characters in a given string appears somewhere else in the string
Scala Programming String Exercise-31 with Solution
Write a Scala program to check whether a prefix string creates using the first specific characters in a given string appears somewhere else in the string.
Sample Solution:
Scala Code:
object Scala_String {
def test(str1: String, n_chr: Int): Boolean = {
var len = str1.length();
var pre_str = str1.substring(0, n_chr);
for (i <- n_chr to len - 1) {
if (n_chr + i <= len) {
if (pre_str.equals(str1.substring(i, n_chr + i)))
return true;
}
}
return false;
}
def main(args: Array[String]): Unit = {
var str1 ="MrsJemsMrsam";
var n = 3;
var prechr = str1.substring(0, n);
println("The given string is: " + str1);
println("The prefix string length is: " + n);
println("Is '" + prechr + "' appear else where in the string? " + test(str1, n))
str1 ="MrJemsam";
n = 2;
prechr = str1.substring(0, n);
println("The given string is: " + str1);
println("The prefix string length is: " + n);
println("Is '" + prechr + "' appear else where in the string? " + test(str1, n))
}
}
Sample Output:
The given string is: MrsJemsMrsam The prefix string length is: 3 Is 'Mrs' appear else where in the string? true The given string is: MrJemsam The prefix string length is: 2 Is 'Mr' appear else where in the string? false
Scala Code Editor :
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Previous: Write a Scala program to check whether a substring appears before a period(.) within a given string.
Next: Write a Scala program to check whether a given substring presents in the middle of another given string. Here middle means difference between the number of characters to the left and right of the given substring not more than 1.
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