Questions And Answers for PowerBuilder Interviews

Question

You have declared a global variable xyz and a local variable xyz in the clicked event of a CommandButton. When you refer to xyz in the CommandButton's clicked event, which variable is referred? Global or Local?

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Answer

Well, when you refer to xyz variable, POWERBUILDER search for the variable in local, instance/shared, instance/shared at the ancestor, global order. That means, in this case, the local variable is referred. To refer to the global variable which has the same name of a local variable, you need to prefix double colon before the variable name.

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