Answer:
private void printArray(int[] arr){ //0
System.out.print("["); //1
for(int k : arr){ //2
System.out.print(k + ", "); //3
}
System.out.println("]"); //4
}
Explanation:
This method should get you started. Your teacher may want a different format or a different type of loop. If you haven't learned for loops yet don't use them that'd be suspicious ;)
What I did:
0: This is the method heading with one parameter for the 1D array. If you need to access it in a different class change private to public.
1: This prints the [ with no line break
2: This is an enhanced for loop to iterate through each element in a 1D array. Alternatively, a normal for loop looks like this:
for (int i = 0; i < arr.length; i++)
instead of retrieving the variable with the enhanced for, you'd have to use arr[i] instead of k in this scenario.
3: This prints the value in each pass of the loop along with a comma and a space.
4: This adds the ] with a line break when the loop is completed
Hope this helps you get started :D comment if you need further help
Answer:
List items are usually accessed using the indexing operator.
Explanation:
Depends on the language, and what you mean with extracting? Do you mean accessing or removing?
Answer:
1-2
2-3
3-1
Explanation:
I couldn't find a way to explain this.
Multiple inheritance causes Diamond problem which happens when:
Class A is parent of class B and C
Now when class D will be inherited from both Class B and C it will have all the members of class A and B which if same will confuse the compiler to import which one?
C++ solves it by using virtual keyword with them and thus telling the compiler which one to inherit.
Java has introduced the interface concept rather then allowing multiple inheritance.
