Aakhri Jung!

4 mark wala a) ka Observer i think

a) Which design pattern is used in this program? Select from the dropdown list below.

public class ClassA{
protected ClassB objectA;
protected String propertyA;
public ClassA(ClassB obj1,String obj2){
this.objectA=obj1;
this.propertyA=obj2;
}
public void MethodA(String message){
objectB.methodA(message);
}
public void MethodB(String message){
system.out.println(this.propertyA+": "+message);
}
}

public class ClassB{
private list listClassA;
public ClassB(){
listClassA=new list();
}
public void AddClassA(ClassA classA){
this.listClassA.add(classA);
}
public void MethodA(String message, ClassA classA){
for(Class obj:listClassA){ //iterate over each element of the collection
if(obj!=classA)
obj.MethodB(message);
}
}
}

??

Allow users to scan over and access the elements of a collection without knowing the underlying representation of the collection.

Iterator

4 marks ka last wala is prototype

You sure?

Conference vaala?

its factory

Web interface?