Answer:
public class Main
{
public static void printString(String strText, int intNumber) {
for(int i=0; i<intNumber; i++){
System.out.println(strText);
}
}
public static void main(String[] args) {
printString("Brainly", 3);
}
}
Explanation:
- Define a function called <em>printString</em> that takes two parameters - a String and an int. Since the function will print out the given String, it's type will be <u>void</u>.
- Use <em>for loop</em> to iterate according to the given number and print the given string
- In the main, call the <em>printString </em>function with some parameters.
#1) An important task that the operating system performs is ____, which keeps track of the files stored on a computer so that they can be retrieved when needed.
Answer: File Management System. Keeps track of where files are stored and determines how the files are stored following the operating system file allocation policies. It uses available storage space efficiently for files and creates a record/log of all file usage. It allocates a file to a user if is free, and if they are permitted access to it. Then de-allocates file when the user is finished with it.
Answer:
1. B 2. D
Explanation:
If computers share processing power, it is just a larger computer.
Answer:
Join
Explanation:
Five basic set operators in relational algebra are as follows:
- Selection - tuple selection
- Projection - extract columns
- Cartesian product - cross product of relations
- Set union - union of two relations
- Set difference - minus operation on two relations
As we can see, Join is not part of the basic set operations but it is implemented using the Cartesian Product operator.
