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Q:

str.substring if 2 letters

var str = "Hello world!";
var res = str.substring(1, 4); //ell
29
var str = "Hello world That is reallly neat!";
var res = str.substring(0, 5);//get first 5 chars
0
public String firstTwo(String str) {
    return str.length() < 2 ? str : str.substring(0, 2);
}
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