Java Programming: From Problem Analysis to Program Design, by D. S. Malik

By D. S. Malik

Designed for the start programming pupil, this e-book will encourage beginners whereas instructing basic programming techniques. in keeping with years of lecture room trying out, this fourth variation of JAVA™ PROGRAMMING: FROM challenge research TO software layout methods programming with a spotlight on transparent factors and perform - serious components in learning the Java language. elementary language is used to give an explanation for the reasoning at the back of each one new proposal, and diverse examples and workouts let readers to perform fixing difficulties and writing code. This re-creation is totally compliant with the most recent model of Java, and comprises up-to-date programming workouts and courses.

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28. Chapter 1: An Overview of Computers and Programming Languages To make Java programs machine independent, the designers of the Java language introduced a hypothetical computer called the Java Virtual Machine (JVM). Bytecode is the machine language for the JVM. Compilers are programs that translate a program written in a high-level language into an equivalent machine language. In the case of Java, this machine language is the bytecode. In Java, the necessary steps to process a program are edit, compile, load, and execute.

Where s ¼ (1/2)(a + b + c). Design an algorithm that uses this formula to find the area of a triangle. What information do you need to find the area? A triangle ABC is inscribed in a circle, that is, the vertices of the triangle are on the circumference of the circle. Suppose the triangle ABC divides the circumference into lengths of a, b, and c inches. Design an algorithm that asks the user to specify the values of a, b, and c and then calculates the radius of the circle. Note that if r is the radius of the circle, then 2pr ¼ a + b + c.

Application programs perform a specific task. The most basic language of a computer is a sequence of 0s and 1s called machine language. Every computer directly understands its own machine language. A bit is a binary digit, 0 or 1. A sequence of 0s and 1s is called a binary code or a binary number. A byte is a sequence of eight bits. One kilobyte (KB) is 210 ¼ 1024 bytes; one megabyte (MB) is 220 ¼ 1,048,576 bytes; one gigabyte (GB) is 230 ¼ 1,073,741,824 bytes; one terabyte (TB) is 240 ¼ 1,099,511,627,776 bytes; one petabyte (PB) is 250 ¼ 1,125,899,906,842,624 bytes; one exabyte (EB) is 260 ¼ 1,152,921,504,606,846,976 bytes; and one zettabyte (ZB) is 270 ¼ 1,180,591,620,717,411,303,424 bytes.

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