Computer Programming for Teens phần 4 doc

... assigned a value. int x; x = 24; x%2==0//is 24% 2==0? + 24 % 2 + 0==0 + true (Therefore, x is an even number.) int x; x = 17; x%2==0//is17%2==0? + 17 % 2 + 1==0 + false (Therefore, x is not even and ... 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 obtain...

Ngày tải lên: 10/08/2014, 12:21

... is optional. 246 Chapter 15 n Objects and Classes: Being Organized Is Better Than Not Jim Collins 45 6-2 345 Jane Austen 2 34- 8765 William Shakespeare 789-15 64 Mark Holden 45 6-12 34 Closing a File The ... list of friends with phone numbers: Carl Brady 555-12 34 Marlo Jones 789-0123 Jason Argonaut 888 -45 67 Jim Collins 45 6-2 345 Jane Austen 2 34- 8765 The text file should be thoug...

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 speed of programming. 4. Press menu button on remote control. 5. Press power button of VCR. 6. Check for red light on VCR. Programming Now we are ready to discuss the subject of...

Ngày tải lên: 10/08/2014, 12:21

... groups. À20 42 13 1, 47 5 À2 34 0 14. 62 58 1 3 À5.76 0.213 17.36 8.0 A Place to Put Data One of the computer s most treasured assets is its capacity to store and manipulate information. Data (plural for ... as operands for the logic operators. Consider this example: 5 þ 9 and 6 – 3 does not make sense in a computer language. However, 5 þ 9 ¼¼ 14 and 6–3!¼ 4 are true statements...

Ngày tải lên: 10/08/2014, 12:21

... used in programming. 28 mod 14 is 0 because there is no remainder. 172 mod 35 is 32 because 172 7 35 ¼ 4 with a remainder of 32. 1 943 mod 7 is 4 because 1 943 7 7 ¼ 277 with a remainder of 4. 18 mod 17 ... program is run on a computer. Recall that output is anything displayed on Some Short Programs 69 Expression Result sum ¼ 14; ! (sum > 12) 14 > 12 + true not true false...

Ngày tải lên: 10/08/2014, 12:21

... About Fun_With_Nums 12 .4, 5, 8, 4. 2 What the function does: (adds, multiplies, and subtracts multiplication will be first.) 12 .4 þ 5*8À 4. 2) 12 .4 þ 40 À 4. 2 52 .4 À 4. 2 ) 48 .2 ) real Square 6 What ... 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 instructio...

Ngày tải lên: 10/08/2014, 12:21

... this: phone_book [0] = " 641 -2222"; phone_book [1] = "123 -45 67"; phone_book [2] = "6 54- 2 345 "; phone_book [3] = "2 34- 4567"; phone_book [4] = "890-12 34& quot;; . . . phone_book ... 167 phone_book [3] ‘‘555 -45 67’’ phone_book [4] ‘‘555-12 34 ’ phone_book [31] ‘‘555-5678’’ phone_book [32] ‘‘555-6789’’ phone_book [33] ‘‘555-9876’’ phone...

Ngày tải lên: 10/08/2014, 12:21

... statements inside the x loop are the body of the y loop. xy 3 31 32 33 34 5 4 41 42 43 44 5 5 51 52 Nested For Loops 209 53 54 cout << average << endl; cout << "The average ... you insert a boolean condition inside the nested for loop. Consider this example: for ( int x = 1; x <= 4; x++ ) { for ( int y = 1; y <= 4; y++) { If(x==y) cout <<...

Ngày tải lên: 10/08/2014, 12:21

... minimum. Computer : Let’s assume that 8 is the smallest number. We’ll get the next number from the list a 4 . Is 4 less than 8? Yes. So 4 is the new minimum. (The minimum has changed three times.) Computer : ... 502 503 748 749 750 751 997 998 999 (the middle of that subsection of the array) A vertical representation of the array: list[500] list[501] list[502] list[503] . . . list[...

Ngày tải lên: 10/08/2014, 12:21

... 135 function heading, 142 – 143 generating copies of, 305 information about, 142 – 143 interacting with main section, 137– 140 library containing, 157 mathematics, 1 34 names, 140 , 142 – 143 , 147 , 165 nothing ... loop, 123–1 24 while loop, 121–123 conditional statement and case- sensitivity, 126 constructors, 240 – 242 copy, 240 default, 240 – 241 empty parameter list, 244 heading...

Ngày tải lên: 10/08/2014, 12:21