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33 Cards in this Set
- Front
- Back
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expression
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is a combination of literals, operators, variables, and parentheses used to calculate a value.
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literal
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characters that directly mean a value, like: 3.456
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operator
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a symbol like plus ("+") or times ("*") that asks for doing arithmetic.
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variable
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a section of memory containing a value
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best rule for an expression is that..
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it must look OK as algebra
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arithmetic operator
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a symbol that asks for doing some arithmetic.
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precedence
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the order in which the operations are done
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unary minus and unary positive are..
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negative and positive
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operand
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a value that is acted upon by an operator.
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An integer operation is always done with __ bits or more
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32
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if one or both operand is 64 bits, then the operation is done with __ bits
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64
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what are the integer variables?
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int and long
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what are the decimal variables?
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float and double
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subexpression
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a part of an expression that is by itself a correct expression
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one or both of the operands of a specific operator is a...
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subexpression
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is the "final" reserved?
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yes
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what dopes "final" tell you?
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the value will not change
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use capital letters for..
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constants
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class
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a programmer defined data type.
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A class is a ___ for building an object
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blueprint
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object
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an instance of a class
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an object is created by using the keyword ___ and a constructor
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new
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methods
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procedures that can be executed by an object
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mothods define an object's ___
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behaviors
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System.out. is a ...
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object
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println is a..
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method
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what does println do?
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send the output to the screen
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parameter
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each piece of date that we send to a method
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in the println method, where would the parameter be?
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between the ( )
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static double pow(double num, double power)
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"num" to the power of "power"
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method for power
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Math.power
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method for sqrt
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Math.sqrt
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Constant PI
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Math.PI
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