Question

Write a recursive method that receives a string as a parameter and recursively capitalizes each character in the string (change a small cap to a large cap, e.g. a to A, b to B, etc) as following: capitalize the first letter from the string, then calls the function recursively for the remainder of the string and in the end, build the capitalized string. For example, for "java", will capitalize the first letter to "J"(base case), calls the method recursively for the reminder of the string "ava" (reduction), and after recursion/reduction is over it and returns "AVA" will build a new string from "J" and "AVA" and return "JAVA" to the calling method.
Write this algorithms in java source code plz.

Answer 1

Answer:

String words[]=str.split("\\s");  

String capitalizeWord="";  

for(String w:words){  

   String first=w.substring(0,1);  

   String afterfirst=w.substring(1);  

   capitalizeWord+=first.toUpperCase()+afterfirst+" ";  

}  

return capitalizeWord.trim();  

Explanation:

Define the word you are trying to capitalize and split it into an array.

String words[]=str.split("\\s");

Create a string for the capital output to be created as

String capitalizeWord="";  

Capitalize the word using the "first.toUpperCase()" and "afterfirst" functions

for(String w:words){  

   String first=w.substring(0,1);  

   String afterfirst=w.substring(1);  

   capitalizeWord+=first.toUpperCase()+afterfirst+" ";  

}