Posts Tagged ‘scja certification’

SCJA CX310-019 Short Notes: Exam Passing Tips

July 4th, 2009

Fundamental Object-Oriented Concepts

  • In Java, a narrowing conversion is also known as an explicit type conversion or casting.
  • A byte can represent values between -128 to 127.
  • An array, in Java, is an ordered collection of primitives, object references, or other arrays. All the elements of an array must be of the same type, except in case of polymorphism.
  • Array elements are initialized to default values, wherever they are created.
  • The increment operator can be used in either of the two forms given below:
    1. Prefix form: In the prefix form, it appears before the operand. For example, ++a;
    2. Postfix form: In the postfix form, it appears after the operand. For example, a ++;
  • Numeric promotions are used to convert the operands in a numeric expression to a common type before an operation is performed between the operands.
  • In Java, there are two kinds of numeric promotions as follows:
    1. Unary numeric promotion
    2. Binary numeric promotion

    • Pass SCJA Certification Java 1.2 in a first attempt:

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    Everything you want to know about the CX310-019 exam

    December 30th, 2008

    Q. What are the prerequisites for the SCJA exam?

    A. There is no prerequisite for the SCJA exam. However, you must be well experienced with the language before you take the exam. Even if you are new to the Java field, you can still pass the exam with self-study.

    Q. What are the exam objectives?

    This is a preview of Everything you want to know about the CX310-019 exam. Read the full post (810 words, 1 image, estimated 3:14 mins reading time)

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    Posted in Everything you want to know, SCJA

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