1.What does ‘jps’ command do? It gives the status of the deamons which run Hadoop cluster. It gives the output mentioning the status of namenode, datanode , secondary namenode, Jobtracker …
41.Which widget represents a standard check box widget. This class also serves as a base class for RadioButton in GWT? CheckBox widget represents a standard check box widget. This class …
31.Which class is the superclass of all user-interface classes? The class UIObject is the superclass for all user-interface objects.
21.What is the purpose of Host Page? The most important public resource is host page which is used to invoke actual GWT application. A typical HTML host page for an …
11.What is the purpose of ‘source’ tag in *.gwt.xml file in GWT? This specifies the names of source folders which GWT compiler will search for source compilation.
1.What is GWT? Google Web Toolkit (GWT) is a development toolkit for building and optimizing complex browser-based applications. GWT is used by many products at Google, including Google AdWords and …
41.How to define a slice in Go? To define a slice, you can declare it as an array without specifying size or use make function to create the one. var …
31.What is the difference between variable declaration and variable definition? Declaration associates type to the variable whereas definition gives the value to the variable.
21.What is the default way of passing parameters to a function? By default, Go uses call by value to pass arguments. In general, this means that code within a function …
11.Can you declared multiple types of variables in single declaration in Go? Yes Variables of different types can be declared in one go using type inference. var a, b, c …
