Answer:
The System Software (Operating System)
Explanation:
Examples of Operating Systems are Windows, MAC and Linux, these software are the foundation of every PC and manages all computer's resources
Answer:
c. You use separator.join(a_list) where a_list is a list of strings.
Explanation:
The join() is an in-built string method which returns a string concatenated with the elements of an iterable. It concatenates each element of an iterable (such as list, string and tuple) to the string and returns the concatenated string.
The syntax of join() is:
string.join(iterable)
From the above syntax, the string usually mean a separator and the iterable will be a string or list or tuple.
The answer is C.
c. You use separator.join(a_list) where a_list is a list of strings.
It is not A because the iterable could be a string. It is not D because the separator is outside not in the bracket.
Answer:
static int checkSymbol(char ch)
{
switch (ch)
{
case '+':
case '-':
return 1;
case '*':
case '/':
return 2;
case '^':
return 3;
}
return -1;
}
static String convertInfixToPostfix(String expression)
{
String calculation = new String("");
Stack<Character> operands = new Stack<>();
Stack<Character> operators = new Stack<>();
for (int i = 0; i<expression.length(); ++i)
{
char c = expression.charAt(i);
if (Character.isLetterOrDigit(c))
operands.push(c);
else if (c == '(')
operators.push(c);
else if (c == ')')
{
while (!operators.isEmpty() && operators.peek() != '(')
operands.push(operators.pop());
if (!operators.isEmpty() && operators.peek() != '(')
return NULL;
else
operators.pop();
}
else
{
while (!operators.isEmpty() && checkSymbol(c) <= checkSymbol(operators.peek()))
operands.push(operators.pop());
operators.push(c);
}
}
while (!operators.isEmpty())
operands.push(operators.pop());
while (!operands.isEmpty())
calculation+=operands.pop();
calculation=calculation.reverse();
return calculation;
}
Explanation:
- Create the checkSymbol function to see what symbol is being passed to the stack.
- Create the convertInfixToPostfix function that keeps track of the operands and the operators stack.
- Use conditional statements to check whether the character being passed is a letter, digit, symbol or a bracket.
- While the operators is not empty, keep pushing the character to the operators stack.
- At last reverse and return the calculation which has all the results.
Answer: Adjustment layer
Explanation:
The image editing tool or technique that should be used by Carter use is an adjustment layer.
The adjustment layer that can be seen in Photoshop refers to an editing tool that's non-destructive image which can be used in adding color and tonal adjustments to a particular image without the pixels changing permanently.
By using the adjustment layers, one can be able to edit and then discard the adjustments. One can also be bake to restore the original image anytime that the person wants.
