Answer:
b. When an array is created, the number of elements must be placed in square brackets following the type of element being stored.
Explanation:
In Java an uninitialized array contains null values. Thus statement c is true as well.
Also generally for initializing and displaying array elements a for loop is used. Hence statement d is also correct.
In Java syntax for declaring an array is as follows:
Array declaration:
type [] array_name ;
Array instantiation(memory allocation):
type [] array_name = new array_name [size of array];
From the above it can be seen that the statement a is true and statement b is false as number of elements in array are not mentioned after the type.
Hence the correct answer is b.
Answer
GUI operating system are more popular than CUI operating system because the GUI operating system is easy to use and understand because commands are graphically presented.They support extra devices and multimedia system.They support network and internet fully.They are multiuser,multitasking operating system.eg windows.
Explanation:
Hope it helps you
Answer:
(d) mysqldump websites -u root -p > websites_backup.sql
Explanation:
To create a backup mysqldump is used.It is a data backup program.This program was originally written by Igor Romanenko. It creates a backup of file name websites_backup.sql.
So among the given options in the question option d is the correct option which backs up the single database websites in the file website_backup.sql.
Answer:
The answer is "Option a".
Explanation:
A score can be detrimental. When an element has a score below zero, it means, that the sequences up to this point have no correlations, that are set to zero and its effects the previous alignment is excluded. Thus, alignment can be further found in every position later in the calculation. and other options are incorrect that can be described as follows:
- In option b, In this option the score can be negative, that's why we can't set its value.
- In option c, The first row and column must contain some value it can't be 0, that's why it is not correct.
- In option d, It will start with a lower score and ends with a higher score, that's why it is not correct.
