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QUIZ GAME: Java

            Written: Maryna Pylnyk, 18/03/2017     

James Gosling, Mike Sheridan, and Patrick Naughton initiated the Java language project in June 1991. Did you know that Java language was initially called Oak after an oak tree that stood outside Gosling's office.
https://en.wikipedia.org/wiki/Java_(programming_language)

What is the result of the following expression:

System.out.println(String.format("%03d", 1));







String text1 =
    "Questa stringa e metodo replaceFirst";
String text2 = text1.replaceFirst("st","ST");

Select the correct result :






What is the result of this expression






What does it mean: "void"?






Which of these structures accepts null as a key?





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