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CodingBat code practice

 

oneTo1


Given an input String, return a new String where every occurrence of "1" is replaced by "one", and every occurrence of "one" is replaced by "1". Use ONLY String methods from the below as needed: length() ; substring(int from, int to) ; substring(int from) ; indexOf(String str) ; compareTo(String other)


oneTo1("1 and one") → "one and 1"
oneTo1("one1") → "1one"
oneTo1("one at a time, 1 and one, 1") → "1 at a time, one and 1, one"

...Save, Compile, Run (ctrl-enter)

public String oneTo1(String str) { }

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