Question

Consider the following recursive method. public static void whatsItDo(String str) { int len = str.length(); if (len > 1) { String temp = str.substring(0, len – 1); System.out.println(temp); whatsItDo(temp); } } What is printed as a result of the call whatsItDo("WATCH")?

Answer 1

Answer:

It prints:

WATC

WAT

WA

W

Explanation:

The function prints the input string minus the last character, then calls itself.

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