Determining the possibility of transforming a string in a single edit

It is required to implement a function (without class declaration and imports) that takes two strings and returns a boolean indicating whether one string can be obtained from the other using exactly one of the following actions:

• replacing one character;
• inserting or deleting one character.

Examples of input data and expected results:

first = "a", second = "b"   -> true
first = "ab", second = "b" -> true
first = "ab", second = "cb" -> true
first = "ab", second = "ba" -> false

public boolean editing(String s1, String s2) {
}