Answer:
In a sentence: data is raw numbers, while information is organized data.
Explanation:
Data is a series of numbers or facts. A data set is a collection of data that are related (for examples all the students result in your last math exam). But it's not organized by itself... and rarely mean anything when looked at it in a raw manner.
To make sense of a data collection, you have to analyze it, calculate the mean or median of the data set for example... this is a treatment that has to be done to a data set to give it significance.. after such analysis, the result you have (mean, median, etc..) is a piece of information devired from the data.
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: A) Make any simple fixes on their own.
The exercise contains 15 questions. The solution is provided for each question.
Each question contains the necessary skills you need to learn.
I have added tips and required learning resources for each question, which helps you solve the exercise. When you complete each question, you get more familiar with a control structure, loops, string, and list.
Use Online Code Editor to solve exercise questions.
Also, try to solve the basic Python Quiz for beginners
Exercise 1: Given two integer numbers return their product. If the product is greater than 1000, then return their sum
Reference article for help:
Accept user input in Python
Calculate an Average in Python
Given 1:
number1 = 20
number2 = 30
Expected Output:
The result is 600
Given 2:
number1 = 40
number2 = 30
Expected Output:
The result is 70
Explanation:
The correct answer is C. Keep existing customers and clients
Explanation:
Customer service refers to the interaction with customers and support employees in a company provide to customer to guarantee he or she has the best experience when buying one product or service. A high-quality customer service implies providing complete information to customers, and helping them before, during, and even after their process in buying or looking for information in a company. The main purpose of this is that customers feel the support from employees, and are loyal to the company which means they will go back if they need the same service or products. Thus, the reason for quality customer service is "Keep existing customers and clients".
