API / Apache FreeMarker Interview questions

What are the types in FreeMarker's data model?

FreeMarker exposes every value supplied to a template as one of a small set of template model types, independent of the Java class behind it:

Type	Description	Example
Scalar - string	Text value	`"hello"`
Scalar - number	Numeric value (int, double, BigDecimal all unify)	`42`
Scalar - boolean	true/false	`true`
Scalar - date/time	Date, time, or date-time value	`.now`
Sequence	Ordered, index-accessible list	`[1, 2, 3]`
Hash	Key-value map, keys are strings	`{"a": 1}`
Node	XML node, when XML is dropped into the model	-
Method / function	A callable exposed to the template	-

A given Java object can implement more than one of these template model interfaces at once - for example, a Java List wrapped by the default object wrapper behaves as a sequence.

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Which FreeMarker data-model type does a Java List get wrapped as?Node

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Hash

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Sequence

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Scalar

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Which of these is NOT one of FreeMarker's basic data-model types?Scalar

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Class

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Sequence

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Hash

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Recently added questions

What is the purpose of interpolation (${...}) in FreeMarker? List the comparison operators supported in FreeMarker? What are the main use cases of FreeMarker? What are the types in FreeMarker's data model? How do you use the #assign directive? Describe the built-ins available in FreeMarker? How do you access static Java members (static methods, fields, and enum constants) from a FreeMarker template? What is Apache FreeMarker? What is the purpose of the FreeMarker Configuration object? What is the difference between FreeMarker's #switch/#case and a chain of #if/#elseif directives? What is the purpose of the <#if> directive? What are the types of loops available in FreeMarker? What is the difference between #assign and #local? How do you apply default values for missing variables in FreeMarker? Why doesn't FreeMarker allow templates unrestricted access to Java reflection and side-effecting method calls? What is the purpose of the incompatible_improvements setting? Define directive in FreeMarker? Which is generally the better choice for a new project today, FreeMarker or Velocity, and why? What is a FreeMarker template? What is the purpose of the #include directive?

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