Answer:
Option (4) is the correct answer.
Explanation:
In Java programming language ,array collection starts from 0 index location and ends in a size-1 index location. So to access the last elements the user needs to use a[Size-1] statement. so to modify the value of the last location of the array the user needs to use "a[size-1]= element;".
But when the user wants to add some new value to the end of the array list collection then he needs to use the statement--
a.add(element); //where add is a function, element is a value and a is a array list object.
Another option is invalid because--
- Option 1 is not the correct because "a[3]=element;" modify the value of the 3rd element of the array.
- Option 2 gives a compile-time error because add functions bracts are not closed.
- Option 3 gives the error because a[4] gives the location of the 5th element of the array but the above question says that a is defined with 4 elements.
I am not completely sure, but I believe that the leader of the Jamestown colony described in this paragraph is John Rolfe.
Answer:
import java.io.*;
import java.util.Scanner;
class divide {
public static void main (String[] args) {
Scanner num=new Scanner(System.in);//scanner object.
int userNum=num.nextInt();
while(userNum>1)//while loop.
{
userNum/=2;//dividing the userNum.
System.out.print(userNum+" ");//printing the userNum.
}
}
}
Input:-
40
Output:-
20 10 5 2 1
Input:-
2
Output:-
1
Input:-
0
Output:-
No Output
Input:-
-1
Output:-
No Output.
Explanation:
In the program While loop is used.In the while loop it divides the userNum by 2 in each iteration and prints the value of userNum.The inputs and corresponding outputs are written in the answer.
Answer: Any person or people asking about someone being a hardware or software person displays that they are questioning about the computer knowledge of the person and his/her interest.
The interest can be regarding software tools for programming, designing , etc or hardware device like troubleshooting, assembling the computer parts ,etc.
The person persisting good knowledge about software programming language and software is diverted towards software side .The person who likes to deal with hardware parts of the computer system is hardware-oriented person.
