uppercase string array without using standard library functions, which makes the algorithm faster by few milliseconds-(Java/src/main/java/com/thealgorithms/strings/Upper.java )

[SantoshInchalakaranji]

1. In the above mentioned algorithm the author used the library functions to check lowercase letters and to convert it to uppercase. which will be time consuming and makes the algorithm again depend on the external built in functions. it can be speeded up by using ascci values and independent of standard libraries.`

2. public static String toUpperCase(String s) {
   if (s == null || "".equals(s)) {
   return s;
   }
   char[] values = s.toCharArray();
   for (int i = 0; i < values.length; ++i) {
   if ( lHere used the library functions

            Character.isLetter(values[i]) &&
            Character.isLowerCase(values[i])
   

//these above 2 checks can be reduced as

values[i]>='a' && values[i]<='z'
) {

              // here used library functions
            values[i] = Character.toUpperCase(values[i]);

this above line can be changed as

// values[i] = (char) (values[i] - 32);
}
}
return new String(values);
}`

[SantoshInchalakaranji]

I want to make this code even more simpler and independent of system libraries , so please assign this to me under HACKTOBERFEST

[JunJul]

Hi, maintainer could you assign this task to me?

[debasishbsws]

Library Functions are there to be used. As an Algorithm repository, this type of change is not needed. Even Library functions made the code more readable. Understanding algorithm readability is more important than a few milliseconds.

[siriak]

I agree with @debasishbsws