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MindTapV2.0 for Farrell's Java Programming with 2021 Updates, 9th Edition [Instant Access], 1 term
9th Edition
ISBN: 9780357505540
Author: Farrell; Joyce
Publisher: Cengage Learning US
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Chapter 5, Problem 2GZ
Program Plan Intro
Lottery game application
Program plan:
- Import necessary package.
- Create a class “Lottery”,
- Define the method “main ()”,
- Declare and initialize the necessary variables.
- Generate the three random numbers.
- Combine three random numbers into a single three digit number.
- Get the first digit entered into the first dialog box.
- Assign the integer value returned form the method “parseInt()”.
- Get the second digit entered into the second dialog box.
- Assign the integer value returned form the method “parseInt()”.
- Get the third digit entered into the third dialog box.
- Assign the integer value returned form the method “parseInt()”.
- Check whether the first, second and third digit is equal to the first, second and third random number generated respectively,
- If it is true, set the match count to “4”.
- Otherwise, check whether the first digit is equal to the first random number generated,
- If it is true, increment the match count by “1”.
- Set the first random value to “99”.
- Otherwise, check whether the first digit is equal to the second random number generated,
- If it is true, increment the match count by “1”.
- Set the first random value to “99”.
- Otherwise, check whether the first digit is equal to the third random number generated,
- If it is true, increment the match count by “1”.
- Set the first random value to “99”.
- Check whether the second digit is equal to the first random number generated,
- If it is true, increment the match count by “1”.
- Set the first random value to “99”.
- Otherwise, check whether the second digit is equal to the second random number generated,
- If it is true, increment the match count by “1”.
- Set the first random value to “99”.
- Otherwise, check whether the second digit is equal to the third random number generated,
- If it is true, increment the match count by “1”.
- Set the first random value to “99”.
- Check whether the third digit is equal to the first random number generated,
- If it is true, increment the match count by “1”.
- Set the first random value to “99”.
- Otherwise, check whether the third digit is equal to the second random number generated,
- If it is true, increment the match count by “1”.
- Set the first random value to “99”.
- Otherwise, check whether the third digit is equal to the third random number generated,
- If it is true, increment the match count by “1”.
- Set the first random value to “99”.
- Check whether the match count is “4”,
- If it is true,set the highest winning.
- Otherwise, check whether the match count is “3”,
- Set the second best winning.
- Otherwise, check whether the match count is “2”,
- If it is true, set the third best winning.
- Otherwise, check whether the match count is “1”,
- If it is true, set the low winning.
- Otherwise, set the winning to “0”.
- Display the output message in dialog box.
- Define the method “main ()”,
Expert Solution & Answer
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1234
3. Which line prevents compiler optimization? Circle one: 1234
Suggested solution:
Store strlen(str) in a variable before the if statement.
⚫ Remove the if statement.
Replace index 0 && index < strlen(str)) {
5 }
}
=
str [index] = val;
Character Hex value | Character Hex value Character Hex value
'A'
0x41
'J'
Ox4a
'S'
0x53
'B'
0x42
'K'
0x4b
"T"
0x54
0x43
'L'
Ox4c
'U'
0x55
0x44
'M'
0x4d
'V'
0x56
0x45
'N'
Ox4e
'W'
0x57
0x46
'0'
Ox4f
'X'
0x58
0x47
'P'
0x50
'Y'
0x59
0x48
'Q'
0x51
'Z'
Ox5a
'T'
0x49
'R'
0x52
'\0'
0x00
Now consider what happens on a Linux/x86 machine when callfoo calls foo with
the input string "ZYXWVUTSRQPONMLKJIHGFEDCBA".
A. On the left draw the state of the stack just before the execution of the instruction
at address Ox40053a; make sure to show the frames for callfoo and foo and
the exact return address, in Hex at the bottom of the callfoo frame.
Then, on the right, draw the state of the stack just after the instruction got
executed; make sure to show where the string "ZYXWVUTSRQPONMLKJIHGFEDCBA"
is placed and what part, if any, of the above return address has been overwritten.
B. Immediately after the ret instruction at address 0x400543 executes, what is
the value of the program counter register %rip?…
1 typedef struct node* {
2
struct node* next;
3
char* key;
4
char* val;
5} node_t;
6
7 char* find_node (node_t* node, char* key_to_find) {
while(strcmp (node->key, key_to_find ) != 0 ) {
node = node->next;
8
9
10
}
11
return node->val;
12 }
Chapter 5 Solutions
MindTapV2.0 for Farrell's Java Programming with 2021 Updates, 9th Edition [Instant Access], 1 term
Ch. 5 - Prob. 1RQCh. 5 - Prob. 2RQCh. 5 - Prob. 3RQCh. 5 - Prob. 4RQCh. 5 - Prob. 5RQCh. 5 - Prob. 6RQCh. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - Prob. 16RQCh. 5 - Prob. 17RQCh. 5 - Prob. 18RQCh. 5 - Prob. 19RQCh. 5 - Prob. 20RQCh. 5 - Prob. 1PECh. 5 - Prob. 2PECh. 5 - Prob. 3PECh. 5 - Prob. 4PECh. 5 - Prob. 5PECh. 5 - Prob. 6PECh. 5 - Prob. 7PECh. 5 - Prob. 8PECh. 5 - Prob. 9PECh. 5 - Prob. 10PECh. 5 - Prob. 1GZCh. 5 - Prob. 2GZCh. 5 - Prob. 3GZCh. 5 - Prob. 4GZCh. 5 - Prob. 5GZ
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