PPT-Variables, Operators and Data Types.

By Shyam Gurram Variables Variables There are certain rules for variables A variable starts with the sign followed by the name of the variable A variable name must start with a letter or the underscore character. and other languages… . Method invocation. puts “yes” . // global, method of Kernel. Math.sqrt. . 2. // object Math, method . sqrt. message.length. . // object message, method length, no . args. Types of Variables. There are 2 main types of variables: . Independent Variable: . The variable that is changed by the scientist; the ‘. I control. ’ variable. Dependent Variable: . The variable that might change because of what the scientist changes – what is being measured . Integer, Floating-Point, Text Data, Variables, Literals. Svetlin Nakov. Telerik Corporation. www.telerik.com. Table of Contents. Primitive Data Types. Integer . Floating-Point / Decimal Floating-Point. Jumps . Logical Operators. The different logical operators found in Java. Rational Operators. The different . rational . operators found in Java. . Jumps . A jump is also known as a branch . A jump is when you program skips certain steps to move on to another block of code . Definition. “An operator is a symbol (+,-,*,/) that directs the computer to perform certain mathematical or logical manipulations and is usually used to manipulate data and variables”. Ex: a+b. Operators in C. Center for Health Policy and Healthcare Research. January 22, 2015. Steven D. Pizer, PhD. Associate Professor of Health Economics. Department . of Pharmacy . and Health Systems Sciences . School . of . 1. Walter F. Blood. Director of Product Management . Agenda. 2. Variables – A Quick Review. Variables in Reports. Variables in Procedures. Variables in Masters. A Quick Review. 3. The Basics. 4. Two types of Variable. • State-space representation.. • Linear state-space equations.. • Nonlinear state-space equations.. • Linearization of state-space equations.. 2. Input-output Description. The description is valid for. Objectives. Work with numeric data. Describe the difference between value types and reference types. Declare and use variables to store data. Create constants. Write expressions containing arithmetic operators and operands. unary and binary. casting. Assignment. shorthand notation. Bitwise operators . Precedence and associativity. Unary arithmetic operators. unary minus operator: . -. invert sign of number . -. a. unary plus operator: . Number of Farms 3818 Land in Farms 1023671 acres Average Size of Farm 268 acres Irrigated Land 43308 acres Market Value of Products Sold 144002000 Average Per Farm 37717 Gross Income Farm Related S Number of Farms 4184 Land in Farms 519247 acres Average Size of Farm 124 acres Irrigated Land 4551 acres Market Value of Products Sold 926116000 Average Per Farm 221347 Gross Income Farm Related So Name analysis. Static . vs. dynamic. Scope. Today. Type checking. 2. Scanner. Parser. Tokens. Semantic . Anlaysis. Parse Tree. AST. IR . Codegen. Optimizer. MC . Codegen. Scanner. Parser. LR Parser. Roadmap. Name analysis. Static scoping. Tree traversal, with symbol-table operations (new, insert, lookup). Today. Type checking. 2. Scanner. Parser. Tokens. Semantic Analysis. Parse Tree. AST. IR . Codegen.