問題一覧
1
used to specify the set of values and their operations
data type
2
the fundamental data types in java
primitive data types
3
is a name for a memory location that stores a specific value such as numbers and letters. is an identifier
variable
4
a memory location whose value cannot be changed during program execution
constant
5
this refers to converting a value from a specific type to a variable of another type
type casting
6
the conversion of the lower precision data type to a value of a higher precision data type
widening conversion
7
higher precision data type into a value of a lower precision data type
narrowing conversion
8
these are specific symbols in a programming language
operators
9
are used to perform basic mathematical operations on numerical values
arithmetic operators
10
are used to evaluate the relation between the operands and generate a decision on that base
rational operators
11
return a boolean value based on the boolean result of the given expressions
logical operators
12
these are used to assign values to a variable
assignment operators
13
a collection of rules that specifies which operations need to be performed in an expression
order of presedence
14
a construct made up of variables and operators that evaluates to a single value
expression
15
an expression that returns a numeric value
arithmetic expression
16
an expression that has operands of a different data types
mixed expression
17
an expression that returns a boolean value when evaluated
logical expression
18
a class in the java util package. is used to read data from the standard input device and store data into variables
scanner
19
declares an object scanner type named input
scanner input
20
can be used to create an output in a specific format
printf