By William, Green, Marcus, Tittel, Ed Brogden
This examination measures the power to layout, write, and comprehend courses written in language model 1.4 of the Java 2 Platform. The programmer's examination concentrates at the language fundamentals. This e-book isn't meant to educate new fabric. as an alternative it assumes that you've an effective origin of data yet can use a refresher on very important suggestions in addition to a advisor to examination subject matters and ambitions. This booklet focuses precisely on what you must cross the examination - it positive aspects test-taking options, time-saving learn counsel, and a unique Cram Sheet that comes with information, acronyms, and reminiscence joggers now not to be had wherever else. The sequence is supported on-line at numerous websites: examcram.com, informit.com, and cramsession.com.
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Additional resources for Java 2 Programmer Exam Cram 2 (Exam CX-310-035)
Example text
Take the following code fragment: 1. 2. 3. 4. 5. 6. println("s3 eq s4"); The String literal "YES" appears in both lines 1 and 2, but the compiler creates only one String object, referred to by both s1 and s2. Thus, line 3 prints out "equal" and it appears to have been tested for equality of content with the == operator. However, the test in line 6 is always false because two distinct objects are involved. One of the most common mistakes that new programmers make is using the == operator to compare String objects instead of the equals method.
Class alpha beta gamma delta A4: Question 5 Answer C is correct; "gamma" will be the second string in the args array, which has the index 1. Answer A is incorrect because it does not start the Java interpreter. Answer B is incorrect because "gamma" is the third string in the args array. Answers D and E are incorrect because you don't use the class file type when starting the Java interpreter. Which of the following are not reserved words in Java? ] • A. transient • B. include • C. goto • D. union A5: Question 6 Answers B and D are correct.
4. Bitwise and Logical Operators Precedence 1 1 4 4 4 5 6 6 7 7 8 8 9 9 10 11 Operator Operator Description Type ~ Integral Unary bitwise complement ! 5). The operands of the &, |, and ^ operators are promoted to int or long types, as discussed earlier under "Widening Conversions," and the result is an int or long primitive, not a boolean. Because each bit in an integer primitive can be modified and examined independently with these operators, they are frequently used to pack a lot of information into a small space.