Question: Assuming that the following variables have been declared, String str1 = Q.E.D.; String str2 = Arcturan Megadonkey; String str3 = Sirius Cybernetics Corporation; Please evaluate

Assuming that the following variables have been declared,

 
String str1 = "Q.E.D.";
String str2 = "Arcturan Megadonkey";
String str3 = "Sirius Cybernetics Corporation";

Please evaluate the following expressions.

str3.substring(9, str3.indexOf("e"))
str3.substring(7, 12)
str2.toLowerCase().substring(9, 13) + str3.substring(18, str3.length() - 7)

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