By Philip Heller
This special booklet teaches starting programmers tips to use the fastest-growing programming language, Java. as well as studying the center Java language, additionally, you will collect a vast knowing of significant programming strategies, together with variables, keep an eye on, reminiscence, indirection, compilation, and calling. Best-selling Java e-book writer and renowned Java college educator Philip Heller is familiar with what you must examine and is familiar with how most sensible to express it. The significant other CD comprises lively, interactive video games for every bankruptcy that illustrate key thoughts and provides you deeper insights into the workings of Java.
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Extra info for Ground-Up JavaiB
Example text
2. 2: EvaluatorLab after evaluation Type the following expressions into EvaluatorLab and observe the results: • 1000+4/2 • (1000+4)/2 • 1+(2*(3-4)+(5-6)*(7+8)) The EvaluatorLab only works with integer data. In Java, integer addition, subtraction, and multiplication behave exactly as you would expect. Division, however, has a problem. Dividing an integer by an integer can produce a non-integer result. Be aware that when Java divides a byte, short, char, int, or long by a byte, short, char, int, or long, the result is truncated.
The operator symbols are &, |, and ^. The "and" of two bits is 1 if both bits are 1. Otherwise, the result is 0. Another way to say this is that the result is 1 if one argument bit is 1 and the other argument bit is 1. The "or" of two bits is 1 if either (or both) of the bits is 1. Otherwise, the result is 0. Another way to say this is that the result is 1 if one argument bit is 1 or the other argument bit is 1 (or both). The "exclusive or" of two bits is 1 if either (but not both) of the bits is 1.
And the colon (:). The operator is used like this: boolean_expression ? value_1 : value_2 The value of the ternary operation depends on the value of the boolean expression. If the boolean expression evaluates to true, the value of the overall operation is value_1. If the boolean expression evaluates to false, the value of the overall operation is value_2. Typically, a ternary operation appears on the right-hand side of an assignment. For example, suppose you want radius to be 10 if mass is less than or equal to 50,000; otherwise, you want radius to be 99.