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25 Cards in this Set
- Front
- Back
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Identifier (can or cannot) start with digit. |
cannot (plus, cannot contain #, but it can start with "_") |
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An identifier that cannot be used as a variable name is a _____ word. |
reserved (public, int, static, void) |
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A comment starts with what characters? |
// |
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A location in memory used for storing data and given a name in a computer program is called a _____ because the data in the location can be changed. |
variable |
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Before a variable is used it must be _____ |
declared |
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Declare an integer variable named degreesCelsius . Declare a long integer variable named grossNationalProduct . |
int degreesCelsius; long grossNationalProduct; |
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Declare two integer variables named profitStartOfQuarter and cashFlowEndOfYear . |
int profitStartOfQuarter, cashFlowEndOfYear; |
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Qualifying an integer declaration with "unsigned" essentially increases the maximum value of the variable by a factor of _____. |
2 |
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Write a single statement that will print the message "first is " followed by the value of first, and then a space, followed by "second = ", followed by the value of second. Print everything on one line and go to a new line after printing. Assume that first has already been declared as a double and that second has been declared as an int . Assume also that the variables have already been given values . |
System.out.println("first is " + first + " second = " + second + "\n"); |
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Declare a variable x , suitable for storing values like 3.14159 and 6.02E23. Declare a character variable named c . |
float x; char c; |
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Declare a variable isACustomer suitable for representing a true or false value . |
boolean isACustomer; |
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In literal format... 1) Optional initial sign (+ or -) and 0-9 2) begins with 0 (remaining digits must be 0-7) 3) begins with 0x (remaining digits must be 0-F) |
1) int 2) octal 3) hexadecimal |
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Literal format... Optional initial sign (+ or -) and terminated by an _____ |
F or f |
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Write a literal corresponding to the value of the first 6 digits of PI ("three point one four one five nine"). |
3.14159 |
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In literal format, you input any printable character with _____ for character data type. |
single quotes (ex. 'A') |
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The character escape sequence to force the cursor to go to the next line |
/n |
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The character escape sequence to force the cursor to advance forward to the next tab setting |
\t |
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The character escape sequence to represent a single quote |
\' |
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The character escape sequence to represent a double quote |
\" |
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The character escape sequence to represent a backslash |
\\ |
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String constant will need _____ |
"" |
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Declare an integer constant , MONTHS_IN_YEAR , whose value is 12 . |
final int MONTHS_IN_YEAR = 12; |
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Write an expression that computes the remainder of the variable principal when divided by the variable divisor . (Assume both are type int .) |
principal % divisor |
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Given an integer variable bridgePlayers , write a statement that increases the value of that variable by 4 . |
bridgePlayers += 4; |
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Given an integer variable strawsOnCamel , write a statement that uses the auto-increment operator to increase the value of that variable by 1 . |
strawsOnCamel ++; |
