A: Adding objects to a collection
B: Iterating through a collection
C: Finding out if an object is in a collection
D: Retrieving an object from a collection

All answer options are correct because:

The Collections Framework in Java is a hierarchy of interfaces and classes that provides a technology for managing a group of objects. It is used to provide a central and unified theme for managing a group of objects. The Java Collections Framework is designed to meet the following goals:

• To offer high performance in terms of efficiency.

A narrowing conversion is an explicit type conversion or casting. It is used when the destination data type is narrower than the source data type, an explicit type conversion is required. The general form of this explicit conversion is given below:

(target-type) value

Here, target-type is the desired data type and value is the value to be converted.

For example:

int num1, int num2;
short num3;
num3= (short)(num1+num2);

class Ques{
public static void main (String[] argv){
int p1 = 0102;
int p2 = -10;
int mod = p1 % p2;
System.out.println(”mod = ” +mod);
}
}

uCertify has recently launched its updated simulation software for UM0-100 (OMG-Certified UML Professional). Why this version is different from its previous versions? The new upgrade version of UM0-100 has the following enhancments:

1. It includes the latest uCertify’s prep-engine.
2. It provides 200 questions and 115 study notes that is not provided anywhere.
3. It provides the study material that makes UML 2.0 different from its previous versions.
4. Study material related to the critical topics of Activity Diagram, Sequence Diagram, Use Case diagram, and Interaction diagrams.

To get a glimpse of the UM0-100 PrepKit you can download its free demo version (which contains 15 free practice questions) from uCertify’s web site. Click the link below: