Core Java Programming Course- Java Development Kit (JDK) 10 Installation

The video tutorial introduces Java 10, focusing on the new VAR keyword for variable declaration. It explains how VAR simplifies variable and object creation by inferring types from assigned values. The tutorial also covers the limitations of using VAR, such as its inapplicability for class-level fields, method parameters, and arrays with initial assignments. The video concludes with a brief mention of future updates in Java 10.

What is the primary new feature introduced in Java 10?

• Switch expressions

• Lambda expressions

• The 'var' keyword for variable declaration

• Enhanced for loop

How does Java determine the type of a variable declared with 'var'?

• Based on the value assigned to it

• It defaults to 'int'

• It requires explicit type declaration

• Based on the variable name

Can 'var' be used to declare objects in Java 10?

• Yes, it can be used for objects

• No, it is only for primitive types

• No, it is not allowed for objects

• Yes, but only for arrays

What is a drawback of using 'var' in method calls?

• It makes the code longer

• It is slower in execution

• It requires more memory

• The data type is not immediately visible

Where is 'var' not allowed to be used?

• In method parameters

• For class-level fields

• For local variables

• In loop declarations

Why can't 'var' be used for array initializations with values?

• It is not supported in Java 10

• It needs an explicit target type

• It requires a specific size

• It only works with empty arrays

What must be specified when using 'var' in method arguments?

• The package name

• The data type of the parameters

• The return type

• The method name