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Capitalise first letter of each word of a string in Java

 
javaFirstClass pro
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Eclipse IDE Mac Spring
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I have a requirement in which, using Java program have to produce a output like

e.g input string is :

requestresponse

Output String should be:

RequestResponse



I made a text (words.txt it has the list of words with first letter in uppercase) file which contains a list of words then made a java program:



comparing the string with the list of words from the words.txt file and if the word is present in the input string, replace that word from the input string. its working but, I am not sure whether it will work always so, want to know if there is any better and more efficient way?
 
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