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Exam Code: 98-388 Practice exam 2022 by Killexams.com team
98-388 Introduction to Programming Using Java

EXAM ID : 98-388
EXAM NAME : Introduction to Programming Using Java
Candidates for this exam are application developers working with Java 6 SE or later, secondary and immediate post-secondary level students of software development, or entry-level software developers.

Candidates should have at least 150 hours or instruction or hands-on experience with Java, are familiar with its features and capabilities, and understand how to write, debug and maintain well-formed, well documented Java code.

- Understand Java fundamentals (15-20%)
- Work with data types, variables, and expressions (40-45%)
- Implement flow control (15-20%)
- Perform object-oriented programming (10-15%)
- Compile and debug code (5-10%)

Understand Java fundamentals (15-20%)
Describe the use of main in a Java application
 signature of main, why it is static; how to consume an instance of your own class;
command-line arguments
Perform basic input and output using standard packages
 print statements; import and use the Scanner class
Evaluate the scope of a variable
 declare a variable within a block, class, or method
Work with data types, variables, and expressions (40-45%)
Declare and use primitive data type variables
 data types, including byte, char, int, double, short, long, float, boolean; identify when precision is lost; initialization; how primitives differ from wrapper object types such as Integer and Boolean
Construct and evaluate code that manipulates strings
 string class and string literals, comparisons, concatenation, case and length; String.format methods; string operators; converting a primitive data type to a string; the immutable nature of strings; initialization; null Construct and evaluate code that creates, iterates, and manipulates arrays and array lists
 one- and two-dimensional arrays, including initialization, null, size, iterating elements, accessing elements; array lists, including adding and removing elements, traversing the list
Construct and evaluate code that performs parsing, casting and conversion
 implementing code that casts between primitive data types, converts primitive types to equivalent object types, or parses strings to numbers Construct and evaluate arithmetic expressions
 arithmetic operators, assignment, compound assignment operators, operator precedence
Implement flow control (15-20%)
Construct and evaluate code that uses branching statements
 if, else, else if, switch; single-line versus block; nesting; logical and relational operators Construct and evaluate code that uses loops
 while, for, for each, do while; break and continue; nesting; logical, relational, and unary operators
Perform object-oriented programming (10-15%)
Construct and evaluate a class definition
 constructors; constructor overloading; one class per .java file; this keyword; inheritance and overriding at a basic level
Declare, implement, and access data members in a class
 private, public, protected; instance data members; static data members; using static final to create constants; describe encapsulation
Declare, implement, and access methods
 private, public, protected; method parameters; return type; void; return value; instance methods; static methods; overloading
Instantiate and use a class object in a program
 instantiation; initialization; null; accessing and modifying data members; accessing methods; accessing and modifying static members; importing packages and classes
Compile and debug code (5-10%)
Troubleshoot syntax errors, logic errors, and runtime errors
 print statement debugging; output from the javac command; analyzing code for logic errors; console exceptions after running the program; evaluating a stack trace Implement exception handling
 try catch finally; exception class; exception class types; display exception information

Introduction to Programming Using Java
Microsoft Introduction Topics
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For years, it seemed like every time a new phone came out, it boasted more megapixels in the camera. In some sectors of the market, that trend seems to have leveled out. The iPhone, for instance, has come standard with 12-megapixel cameras for the last several generations (via Apple). Other manufacturers, however, are still going strong. The OnePlus 9 Pro, for example, has a 48-megapixel camera, and the iPhone 14 Pro is rumored to follow suit (via PhoneArena).

More megapixels are generally considered to be synonymous with better picture quality, but the question is whether or not that's actually true. As explained by Digital Trends, megapixels are only one part of the picture quality equation. The size of the sensor, image processing capability, and a whole host of other characteristics are just as important, if not more important, than the number of megapixels.

That isn't to say that more megapixels are a bad thing, as long as your phone packs the requisite supporting infrastructure to make use of them. Digital Trends goes on to explain that there is probably a ceiling when it comes to megapixels in smartphone cameras. Sensor size is limited by the size of the phone itself, and at a certain point, you end up with more noise or larger file sizes than are worthwhile for a phone camera.

Mon, 08 Aug 2022 01:56:00 -0500 en-US text/html https://www.slashgear.com/955840/technology-myths-you-need-to-stop-believing-immediately/
Killexams : Microsoft To Do review

Microsoft, the company, may need no introduction. It’s the American software giant whose Windows operating system powers the majority of the world’s personal computers. 

The first version of Microsoft To Do (opens in new tab) was launched (as a preview) in April 2017. It wasn’t until two years later that Microsoft debuted the app’s full version. The To Do app’s interface bears a lot of resemblance to Wunderlist, a to-do-list app Microsoft purchased in 2015. 

Many people around the globe say positive things about the To Do app (opens in new tab). We decided to check it out and confirm for ourselves if it’s really as good as they said. 

Microsoft To Do 1

(Image credit: Microsoft)

Microsoft To Do: Plans and pricing