What Is 98-388 Test?
This exam is taken by the developers and the specialists who want to enhance their skills in Java. It has 40-60 questions and you get 45 minutes to attempt the whole test. You can take this exam in different languages like English, Spanish, Japanese, Traditional Chinese, French, German, and Korean. The secondary or post-secondary level students of software development often attempt 98-388 to demonstrate their skills in Java. To register for the real validation, you have to pay $127 and this is not a fixed price because it changes from country to country.
Reference: https://www.microsoft.com/en-us/learning/exam-98-388.aspx
Microsoft 98-388 Exam Syllabus Topics:
| Topic | Details |
|---|---|
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 |
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Skills measured
- Implement flow control (15-20%)
- Perform object-oriented programming (10-15%)
- Compile and debug code (5-10%)
- Work with data types, variables, and expressions (40-45%)
- Understand Java fundamentals (15-20%)
Deeper Dive into Tested Topics
The first measured area covers the concepts like describing the use of main in Java Applications, evaluating the scope of a variable, and performing basic input and output standard packages. The second domain involves the concepts like implementing and accessing data members in a class, constructing & evaluating a class definition, and instantiating and using the class object in a program. The third part talks about the notions of evaluating the code that uses branching statements and constructing code that uses loops. Then, the fourth tested portion declares and uses primitive data type variables, evaluating codes that manipulate strings, creates, iterates and manipulates arrays, and performs parsing, conversion, and casting. The last objective discusses concepts related to troubleshooting syntax, logic, and routine errors along with exception handling.
