Java Programming for Engineers by Julio Sanchez

By Julio Sanchez

As professors at Minnesota country collage, the authors built this publication after figuring out the necessity for a Java programming ebook particularly meant for engineering scholars. Java Programming for Engineers deals simple programming talents that may be utilized within the engineering box. the academic makes use of the private machine as a improvement platform and assumes no earlier programming adventure or wisdom. the one talents anticipated of the reader are uncomplicated keyboarding and user-level familiarity with the computer. It deals supplementary fabrics in the course of the CRC website.

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5. Java type casting must follow the following rules: 1. Boolean variables cannot be cast into any other type. 2. Any of the integer data types can be cast into any other type, except boolean. Casting into a smaller type can result in loss of data. 3. Floating-point types can be cast into other float types or into integer types. These casts may result in loss of data. 4. The char type can be cast into integer types. Since the char is 16-bits wide, casting into a byte type may result in loss of data or in garbled characters.

A group of eight cells, called a byte, stores a number in the range 0 to 255. vp Thursday, April 25, 2002 9:27:53 AM Color profile: Disabled Composite Default screen 7 6 5 4 3 2 1 0 High-order bit (HOB) Low-order bit (LOB) Figure 3-2 Bit Numbering Characters and symbols are stored in computers according to a code in which each character or symbol corresponds to a numeric value. For example, if we agree that the upper-case letter A is represented by the number 1, the letter B by the number 2, and so forth, then the upper-case letter Z is represented by the number 26.

The char type can be cast into integer types. Since the char is 16-bits wide, casting into a byte type may result in loss of data or in garbled characters. vp Thursday, April 25, 2002 9:28:01 AM Color profile: Disabled Composite Default screen Declaring literals Java programs usually contain values expressed directly. These values are called literal expressions, or literals. You use a literal to initialize a variable or a constant. For example: int age = 32; String myU = “Minnesota State University”; In the declaration of literal values, Java assumes that floating-point literals are of type double.

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