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Fund. of Java 3

Fundamentals of Java Chapter 3

QuestionAnswer
Defines the rules for interpreting the meaning of statements. Semantics
Items in a program that do not change. Are restrincted to primitive data types or strings. Literals
Defines the rules for combining symbols and words into statements. Syntax
Java can hadle two types of data: Primative Data Types, Objects
the operation of joining two character strings end to end. Concantenation operator
A collection of classes. Package
x is the overall name of the package, y is the name of a subsection within the package, z is the nam of a particular class in a subsection. import x.y.z
Understands two messages print and print ln. System.out
Returns the first double in the input line. Leading and trailing spaces are ignored. double nextDouble()
Returns the first integer in the input line. Leading and trailing spaces are ignored. int nextInt()
Returns the input line, including leading and trailing spaces. Warning: A leading newline is returned as an empty string. String nextLine ()
A step-by-step procedurefor solving a problem or accomplishing some end. algorithm
Program algorithms that are often written in a somewhat stylized verson of English Psuedocode
Three types of mistakes, or errors: Syntax errors, Run-time errors, and logic errors
Errors that occur when we violate a syntax rule. These errors are detected at compilation. Syntax Errors
An error that occurs when we ask the computer to do something that it considers illegal, such as dividing by 0. Run-time errors
An error that occurs when we fail to express ourselves accuratly. Also called design errors or bugs. Logic Errors
Created by: serenity3
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