JAVA test on P6

Question 1. Which line is wrong?

 1. int i = 0; 

 2. due to { 

 3. i + = 1; 

 4.} while (i == 0); 

 5. System.out.println ('i =' + i);

first
2 and 3
4
No wrong lines

Question 2. s is the result of how much when executing the command block?
```
 int i = 0; 

 int s = 0; 

 for (;;) { 

 if i == 3 break; 

 s = s + i; 

 i ++; 

 } 
```
1. 6
2. 3
3. Program reported an error
4. 0

Question 3. In what line is the program wrong?

 1. int i = 0; 

 2. int s = 0; 

 3. for (;;) { 

 4. if i == 3 break; 

 5. s = s + i; 

 6. i ++; 

 7.}

1 and 2
4
6
No wrong lines

Question 4. What is the result of the program?

 BreakDemo class { 

 public static void main (String [] args) { 

 int [] arrayOfInts = {32, 87, 3, 589, 12, 1076, 2000, 8, 622, 127}; 

 int searchFor = 12; 

 int i; 

 boolean fountIt = false; 

 for (i = 0; i 
 if (arrayOfInts [i] == searchFor) { 

 fountIt = true; 

 break; 

 } 

 } 

 if (fountIt) { 

 System.out.println ('Found' + searchFor + 'at index' + i); 

 } else 

 System.out.println (searchFor + 'not in the array'); 

 } 

 }

12 không phải trong mảng
Found 12 at index 4
Program error
1. Found it

Question 5. Which line is wrong?

 1. BreakDemo class { 

 2. public static void main (String [] args) { 

 3. int [] arrayOfInts = {32, 87, 3, 589, 12, 1076, 2000, 8, 622, 127}; 

 4. int searchFor = 12; 

 5. int i; 

 6. boolean fountIt = false; 

 7. for (i = 0; i 
 8. if (arrayOfInts [i] == searchFor) { 

 9. fountIt = true; 

 10. break; 

 11.} 

 twelfth. } 

 13. if (fountIt) { 

 14. System.out.println ('Found' + searchFor + 'at index' + i); 

 15.} else 

 16. System.out.println (searchFor + 'not in the array'); 

 17.} 

 18.}

2 and 6
1. 3 and 11, 15
1. 5, 7, 9
No programs are wrong

Question 6. What does the program do?

 BreakDemo class { 
 public static void main (String [] args) { 
 int [] arrayOfInts = {32, 87, 3, 589, 12, 1076, 2000, 8, 622, 127}; 
 int searchFor = 12; 
 int i; 
 boolean fountIt = false; 
 for (i = 0; i  if (arrayOfInts [i] == searchFor) { 
 fountIt = true; 
 break; 
 } 
 } 
 if (fountIt) { 
 System.out.println ('Found' + searchFor + 'at index' + i); 
 } else 
 System.out.println (searchFor + 'not in the array'); 
 } 
 }

Find an element in the array
1. Compare array elements together.
Calculate the total array.
All answers are wrong

Question 7. What does the following program do?

 class ContinueDemo { 

 public static void main (String [] args) { 

 String searchMe = 'peter piper picked up a peck of pickled peppers'; 

 int max = searchMe.length (); 

 int numPs = 0; 

 for (int i = 0; i 
 if (searchMe.charAt (i)! = 'p') continue; 

 numPs ++; 

 } 

 System.out.println ('Found' + numPs + 'p's in the string.'); 

 } 

 }

Count the letter p in the character string
Find out if the p is in front of the letter i in the string
Search for letter p in the string
All is wrong

Question 8. What is the result of the following program?

 class ContinueDemo { 

 public static void main (String [] args) { 

 String searchMe = 'peter piper picked up a peck of pickled peppers'; 

 int max = searchMe.length (); 

 int numPs = 0; 

 for (int i = 0; i 
 if (searchMe.charAt (i)! = 'p') 

 tiếp tục; 

 numPs ++; 

 } 

 System.out.println ('Found' + numPs + 'p's in the string.'); 

 } 

 }

1. Found 9 p's in the string.
Found 8 p's in the string.
Found 10 p's in the string.
There is no right answer.

Question 9. What is the result of the following program?

 class ContinueDemo { 

 public static void main (String [] args) { 

 String searchMe = 'peter piper picked up a peck of pickled pepers'; 

 int max = searchMe.length (); 

 int numPs = 0; 

 for (int i = 0; i 
 if (searchMe.charAt (i)! = 'p') 

 tiếp tục; 

 numPs ++; 

 } 

 System.out.println ('Found' + numPs + 'p's in the string.'); 

 } 

 }

Found 9 p's in the string.
Found 8 p's in the string.
Found 10 p's in the string.
There is no right answer.

Question 10. Which method of the String class returns the index of the child string that appears first in the char character string '
1. concat ()
2. charAt ()
3. indexOf ()
4. There is no right answer.

Jessica Tanner

Update 24 May 2019

You should read it

May be interested

Set of multiple choice questions on programming with P14 prize
you are a regular person writing about programming code, so are you confident with your knowledge? try checking with our multiple choice questions below.
What test you know about operating system P12
you love to learn the knowledge about the operating system. if you feel depressed when reading long articles, try the following multiple choice questions of network administrator. there are many good quizzes to learn.
Multiple choice questions about network security implementation have P2 answers
security of information and network security is essential in today's 4.0 technology era. to help readers have more useful knowledge on this topic, the quiz below network administrators will send you interesting questions.
Multiple choice questions on network security implementation have P3 answers
what do you know about network security deployment? if you are a person who is studying and working on information technology, you probably can't ignore the very interesting knowledge that the network administrator wants to share below.
What do you know about P17 software technology
in the quiz below, the network administrator will send you the topic of software technology. for those who are working on the software, certainly will not ignore our series of tests.
Test of database security P10
database is a data collection organized in a structured way related to each other and stored in a computer. the database is designed and built to allow users to store data, retrieve information or update data. here, please read more about this topic through our quiz below.

JAVA test on P6

You should read it

May be interested

Quiz technology