tasks a-s

Task/Copy-a-string/Groovy/copy-a-string-1.groovy

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+def string = 'Scooby-doo-bee-doo'    // assigns string object to a variable reference
+def stringRef = string               // assigns another variable reference to the same object
+def stringCopy = new String(string)  // copies string value into a new object, and assigns to a third variable reference

Task/Copy-a-string/Groovy/copy-a-string-2.groovy

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+assert string == stringRef           // they have equal values (like Java equals(), not like Java ==)
+assert string.is(stringRef)          // they are references to the same objext (like Java ==)
+assert string == stringCopy          // they have equal values
+assert ! string.is(stringCopy)       // they are references to different objects (like Java !=)