Variables and Data Types

What are the primitive data types in Java?

• boolean, byte, short, int, long, float, double, and char

• boolean, byte, short, int, long, float, double, char, string

• boolean, string, array, object

• integer, string, array, object

What is the size of the 'int' data type in Java?

• 4 bytes

• 16 bytes

• 8 bytes

• 2 bytes

Which data type is used to store decimal numbers in Java?

• float

• int

• boolean

• double

What is the default value of the 'boolean' data type in Java?

• null

• true

• 0

• false

What is the difference between 'float' and 'double' data types in Java?

• The difference between 'float' and 'double' data types in Java is the size.

• The main difference between 'float' and 'double' data types in Java is the precision.

• The difference between 'float' and 'double' data types in Java is the range.

• The difference between 'float' and 'double' data types in Java is the memory usage.

Which data type is used to store single characters in Java?

• int

• boolean

• char

• String

What is the maximum value that can be stored in the 'short' data type in Java?

• 32767

• 2147483647

• 65535

• -32768

What is the purpose of the 'byte' data type in Java?

• The purpose of the 'byte' data type in Java is to store floating-point values.

• The purpose of the 'byte' data type in Java is to store characters.

• The purpose of the 'byte' data type in Java is to store boolean values.

• The purpose of the 'byte' data type in Java is to store integer values from -128 to 127 and save memory.

What is the difference between 'char' and 'String' data types in Java?

• 'char' is a numeric data type, while 'String' is a text data type.

• The difference between 'char' and 'String' data types in Java is that 'char' represents a single character, while 'String' represents a sequence of characters.

• 'char' and 'String' are interchangeable and can be used interchangeably in Java.

• 'char' represents a sequence of characters, while 'String' represents a single character.

Which data type is used to store true/false values in Java?

• int

• string

• float

• boolean