Iteration
Another word for repetition.
Accumulation
To collect or gather; useful technique in loops.
Nested loop
A loop that will run to completion for each iteration of the outer loop.
sentinel loop
A loop that uses a value or dummy, to indicate the end of data entry.
pseudocode
Literally means "false code". Used as a program design aid.
Index
An integer value used to specify the position of an array element or String character.
array
An ordered collection of similar items. These items are of the same data type, i.e.: int, double, or String.
elements
What the items stored in an array are called.
an initializer list
Creating an array with specific initial values.
immutability
This term is characteristic of Strings, and the size of arrays, that prevents those data structures from changing.
substring
A string method that returns a subset of a string at the index parameter.
String
This data type can contain any character and have any length.
IndexOutOfBoundsException
A run-time exception that occurs when the index used is outside the bounds of the array, either too small (less than zero) or too large (greater than or equal to the length of the array).
run - time error
This kind of error occurs while you are executing the program. It usually causes the program to stop running.
compile error
This error occurs when you are validating the syntax of the program.
concatenation
This term defines the process of combining Strings with other Strings or other data types.
length()
A string method that returns an integer that is the total number of characters in the string.
method
a collection of statements that are grouped together to perform an operation. When you call the System.out.println() it is a method. In other words, it does something.
The length of an array is accessed using the length property. Example: array[0].length
The length of a String is accessed via a method. Example: str.length() The parentheses at the end indicate it is a method.
0
The "default value" for the array int[] arr = new int[100];
0.0
The default value for the array double[] arr = new double[50];
false
The "default value" for the array boolean[] arr = new boolean[75];