310-055 Braindumps, Certification Tutorial Course Materials

Title of Exam: 310-055 Sun Certified Programmer for the Java 2 Platform, Standard Edition 5.0 Exam

Who is the vendor for 310-055 exam?

Sun Microsystems

When completing 310-055 you would have earned credit towards:

Sun Certified Programmer for the Java 2 Platform, Standard Edition 5.0 also known as SCJP.

310-055 Exam Description

The Sun Certified Programmer for the Java 2 Platform, Standard Edition 5.0 exam is required to achieve a Sun Certified Associate for the Java Platform, Standard Edition certification.

What are the fields covered by 310-055 examination?

The 310-055 Sun Certified Programmer for the Java 2 Platform, Standard Edition 5.0 examination covers a number of broad areas which are discussed in detail below:

310-055 Exam area 1. Declarations, Initialization and Scoping

Develop code that declares classes (including abstract and all forms of nested classes), interfaces, and enums, and includes the appropriate use of package and import statements (including static imports).

Develop code that declares an interface. Develop code that implements or extends one or more interfaces. Develop code that declares an abstract class. Develop code that extends an abstract class.
Develop code that declares, initializes, and uses primitives, arrays, enums, and objects as static, instance, and local variables. Also, use legal identifiers for variable names.

Develop code that declares both static and non-static methods, and - if appropriate - use method names that adhere to the JavaBeans naming standards. Also develop code that declares and uses a variable-length argument list.

Given a code example, determine if a method is correctly overriding or overloading another method, and identify legal return values (including covariant returns), for the method.

Given a set of classes and superclasses, develop constructors for one or more of the classes. Given a class declaration, determine if a default constructor will be created, and if so, determine the behavior of that constructor. Given a nested or non-nested class listing, write code to instantiate the class.

310-055 Exam area 2. Flow Control

Develop code that implements an if or switch statement; and identify legal argument types for these statements.

Develop code that implements all forms of loops and iterators, including the use of for, the enhanced for loop (for-each), do, while, labels, break, and continue; and explain the values taken by loop counter variables during and after loop execution.

Develop code that makes use of assertions, and distinguish appropriate from inappropriate uses of assertions.

Develop code that makes use of exceptions and exception handling clauses (try, catch, finally), and declares methods and overriding methods that throw exceptions.

Recognize the effect of an exception arising at a specified point in a code fragment. Note that the exception may be a runtime exception, a checked exception, or an error.

Recognize situations that will result in any of the following being thrown:

Array Index Out Of Bounds Exception, Class Cast Exception, Illegal Argument Exception, Illegal State Exception, Null Pointer Exception, Number Format Exception, Assertion Error, Exception In Initializer Error, Stack Over flow Error or No Class Def Found Error. Understand which of these are thrown by the virtual machine and recognize situations in which others should be thrown programatically.

310-055 Exam area 3. API Contents

Develop code that uses the primitive wrapper classes (such as Boolean, Character, Double, Integer, etc.), and/or auto boxing & UN boxing. Discuss the differences between the String, String Builder, and String Buffer classes.

Given a scenario involving navigating file systems, reading from files, or writing to files, develop the correct solution using the following classes (sometimes in combination), from java.io: Buffered Reader, Buffered Writer, File, File Reader, File Writer and Print Writer.

Develop code that serializes and/or de-serializes objects using the following APIs from java.io: Data Input Stream, Data Output Stream, File Input Stream, File Output Stream, Object Input Stream, Object Output Stream and Serializable.

Use standard J2SE APIs in the java.text package to correctly format or parse dates, numbers, and currency values for a specific locale; and, given a scenario, determine the appropriate methods to use if you want to use the default locale or a specific locale. Describe the purpose and use of the java.util.Locale class.

Write code that uses standard J2SE APIs in the java.util and java.util.regex packages to format or parse strings or streams. For strings, write code that uses the Pattern and Matcher classes and the String.split method. Recognize and use regular expression patterns for matching (limited to: . (dot), * (star), + (plus), ?, \d, \s, \w, [], ()). The use of *, +, and ? will be limited to greedy quantifiers, and the parenthesis operator will only be used as a grouping mechanism, not for capturing content during matching. For streams, write code using the Formatter and Scanner classes and the PrintWriter.format/printf methods. Recognize and use formatting parameters (limited to: %b, %c, %d, %f, %s) in format strings.

Full details about

310-055 Exam area 4 Concurrency

Write code to define, instantiate, and start new threads using both java.lang.Thread and java.lang.Runnable.

Recognize the states in which a thread can exist, and identify ways in which a thread can transition from one state to another.

Given a scenario, write code that makes appropriate use of object locking to protect static or instance variables from concurrent access problems.

Given a scenario, write code that makes appropriate use of wait, notify, or notifyAll.

310-055 Exam area 5 OO Concepts

Develop code that implements tight encapsulation, loose coupling, and high cohesion in classes, and describe the benefits.

Given a scenario, develop code that demonstrates the use of polymorphism. Further, determine when casting will be necessary and recognize compiler vs. runtime errors related to object reference casting.

Explain the effect of modifiers on inheritance with respect to constructors, instance or static variables, and instance or static methods.

Given a scenario, develop code that declares and/or invokes overridden or overloaded methods and code that declares and/or invokes superclass, overridden, or overloaded constructors.

Develop code that implements "is-a" and/or "has-a" relationships.

310-055 Exam area 6 Collections / Generics
Given a design scenario, determine which collection classes and/or interfaces should be used to properly implement that design, including the use of the Comparable interface.

Distinguish between correct and incorrect overrides of corresponding hashCode and equals methods, and explain the difference between == and the equals method.

Write code that uses the generic versions of the Collections API, in particular, the Set, List, and Map interfaces and implementation classes. Recognize the limitations of the non-generic Collections API and how to refactor code to use the generic versions.

Develop code that makes proper use of type parameters in class/interface declarations, instance variables, method arguments, and return types; and write generic methods or methods that make use of wildcard types and understand the similarities and differences between these two approaches.

Use capabilities in the java.util package to write code to manipulate a list by sorting, performing a binary search, or converting the list to an array. Use capabilities in the java.util package to write code to manipulate an array by sorting, performing a binary search, or converting the array to a list. Use the java.util.Comparator and java.lang.Comparable interfaces to affect the sorting of lists and arrays. Furthermore, recognize the effect of the "natural ordering" of primitive wrapper classes and java.lang.String on sorting.

310-055 Exam area 7 Fundamentals

Given a code example and a scenario, write code that uses the appropriate access modifiers, package declarations, and import statements to interact with (through access or inheritance) the code in the example.

Given an example of a class and a command-line, determine the expected runtime behavior.

Determine the effect upon object references and primitive values when they are passed into methods that perform assignments or other modifying operations on the parameters.

Given a code example, recognize the point at which an object becomes eligible for garbage collection, and determine what is and is not guaranteed by the garbage collection system. Recognize the behaviors of System.gc and finalization.

Given the fully-qualified name of a class that is deployed inside and/or outside a JAR file, construct the appropriate directory structure for that class. Given a code example and a classpath, determine whether the classpath will allow the code to compile successfully.

Write code that correctly applies the appropriate operators including assignment operators (limited to: =, +=, -=), arithmetic operators (limited to: +, -, *, /, %, ++, --), relational operators (limited to: <, <=, >, >=, ==, !=), the instanceof operator, logical operators (limited to: &, |, ^, !, &&, ||), and the conditional operator ( ? : ), to produce a desired result. Write code that determines the equality of two objects or two primitives.

310-055 Difficulty rating: this examination rates 3 on a scale of 1 - 5 difficulty rating.

How long do I have to complete 310-055 examination?

175 minutes

How many questions will I be required to answer?

72 questions

How much will 310-055 cost?

Contact the Examination Test Centre directly for information regarding course availability, registration information and cost. Remember that costs may vary from vendor to vendor and from examination to examination.

310-055 Study Tips:

Testking has several products that include excellent materials that will aid in preparation for this exam. Their materials include detailed 310-055 study notes and guides, questions and answers with detailed explanations, even practice tests, which were compiled by experts in their respective field. For this examination you can check 310-055 Test King and the 310-055 practice test.

Full details about