Computer Programming for Teens phần 10 potx

... 94 even or odd number, 102 104 inside nested for loop, 212–213 loops, 221 boolean expression becoming false, 121 equal (==) operator, 102 false, 126 if. . .else statement, 99 101 for loop, 114–115, ... 93–94, 109 program fragments, 101 programmers, 32 assigning variables, 32–33 listing variables, 36 programming, 2, 15 algorithms, 15 object-oriented, 239 top-down design, 76 progr...

Ngày tải lên: 10/08/2014, 12:21

... that again?"; for (x = 0; x < 250; xþþ) { cout << first_phrase << endl; } return 0; } Programming 15 How This Book Is Organized Computer Programming for Teens is organized ... and so forth. The party would not just ‘‘happen.’’ You would have to deal with all the details, which the well-heeled ‘‘high-level’’ party giver can ignore. Computer Languages 11 Compu...

Ngày tải lên: 10/08/2014, 12:21

... Place to Put Data One of the computer s most treasured assets is its capacity to store and manipulate information. Data (plural for datum) is another term for this information. Most programs that ... of ‘‘on’’ and ‘‘off’’; these states represent the basis of the digitization of information for the computer. Programming relies on the ability to write clear, step-by-step solutions cal...

Ngày tải lên: 10/08/2014, 12:21

... as two vertical bars: ||. Examples x>3 and x < 10 is the same as x<3&&x< ;10 y > 100 or y < 0 is the same as y > 100 || y < 0 A Special Logic Operator: The Not Operator Our ... figuring out how we might solve them from a design point of view. Then we’ll consider designs for problems for a computer. In This Chapter n Top-down design n Stepwise refinemen...

Ngày tải lên: 10/08/2014, 12:21

... Then Assigned Declared and Assigned in the Same Statement int x; for (int x ¼ 1; ) for (x ¼ 1; ) int y; for ( int y ¼ 100 ; ) for (y ¼ 100 ; ) Notice that in the first example, the initial value of ... involve a decision, but for the computer, it involves a lot of decisions. When you enter a password at an ATM, the computer must match your entered password with the information o...

Ngày tải lên: 10/08/2014, 12:21

... intentionally left blank In computer programming terms, a function is a separate body of code that performs some task. T hink of it as a machine that has certain instructions to perform usually on a variable ... x x ¼ x þ 1; } while (x< ;10) ; You will get the same output as you had in the while loop. Again, you will not see 10 in the output because the loop is exited before 10 can...

Ngày tải lên: 10/08/2014, 12:21

... Our for loop would look like this: for ( int x=0;x<=9;x=x+1) This for loop will spin 10 times and hit every number from 0, 1, ,7,8,9.The next part of the problem is to address how to use the for ... value 10 in list [10] for example. That would be a coincidence. for loops are the easiest way of moving through an array because you can set the control variable’s values to mat...

Ngày tải lên: 10/08/2014, 12:21

... feed, and the 10s from the second row. 5555 10 10 10 10 If we had not put the cout << endl statement in the code, all the numbers would appear on one line like this: 555 5101 0101 0 Now let’s ... inside 10 10 10 10 If we were to load the row manually, it would look like this: Row Col group[2][1] = 10; group[2][2] = 10; group[2][3] = 10; group[2][4] = 10; We can now use t...

Ngày tải lên: 10/08/2014, 12:21

... focus object-oriented programming. Example Think of a student object that you might design for a school computer system. You would want the student object to have storage for a name, address, ... needs this information, we will force it to call a method to get that information rather than being able to know the gpa right away. Figure 15.1 is an example of a class definition for a stu...

Ngày tải lên: 10/08/2014, 12:21

... will be replaced. Now look at all the work the computer does to find the minimum for this array of seven members. Here are six statements that will look for a better minimum (a lower value) than the ... and they are. We need to use a loop to save some time in our programming. Let’s use a for loop to hit all the members of the array. for (int x = 0; x < 7; x = x þ 1) { if ( collec...

Ngày tải lên: 10/08/2014, 12:21