Question: Trying to write a Java program code for this problem.. Return the number of times that the string hi appears anywhere in the given string.

Trying to write a Java program code for this problem..

Return the number of times that the string "hi" appears anywhere in the given string.

countHi("abc hi ho") -> 1

countHi("ABChi hi") -> 2

countHi("hihi") -> 2

Use the following method signature:

public int countHi(String str) {

}

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