CodeLab Solution 20857

CS125 CodeLab Solutions

CodeLab Solution 20857

Write a recursive, int -valued method , len, that accepts a string and returns the number of characters in the string .

The length of a string is:

0 if the string is the empty string (“”).
1 more than the length of the rest of the string beyond the first character .

[cc lang=”JAVA”] public int len(String sentence)
if (sentence.isEmpty())
return 0;
return (1 + len(sentence.substring(1,sentence.length())));

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