Java SCJP on Android
Free AppAbout Java SCJP on Android
333 Questions to help study for the SCJP Sun Certified Programmer for Java 6 Exam.
Asks a series of multiple choice questions to help study for the SCJP Version 1.6 exam.
The questions are displayed in random batches of 10 and a score is given at the end.
If a question is answered incorrectly, the correct answer is displayed and explained. Exam tips are displayed for some of the harder questions.
An example question is
What will be the result of attempting to compile and run the following code?
abstract class Base {
abstract void amethod();
static int i;
}
public class DLSoftwareSolutions extends Base{
public static void main(String argv[]){
int[] dl=new int[10];
for(i=0;i < dl.length;i++)
System.out.println(dl[i]);
}
}
OPTIONS
1) a sequence of 10 0's will be printed
2) Error: dl is used before it is initialized
3) Error: DLSoftwareSolutions must be declared abstract
4) IndexOutOfBoundes Error
ANSWER 3
The answer is 3) DLSoftwareSolutions must be declared abstract.
A class that contains an abstract method must itself be declared as abstract.
Exam Tip
---------------------------------------------------
abstract methods must be implemented by a subclass, so they must be inheritable.
abstract methods cannot be private.
abstract methods cannot be final.
abstract methods may have parameters, a return type, and optional throws clause, but are not implemented.
abstract methods end in a semicolon-no curly braces.
A single abstract method in a class means the whole class must be abstract.
An abstract class can have both abstract and nonabstract methods.
Asks a series of multiple choice questions to help study for the SCJP Version 1.6 exam.
The questions are displayed in random batches of 10 and a score is given at the end.
If a question is answered incorrectly, the correct answer is displayed and explained. Exam tips are displayed for some of the harder questions.
An example question is
What will be the result of attempting to compile and run the following code?
abstract class Base {
abstract void amethod();
static int i;
}
public class DLSoftwareSolutions extends Base{
public static void main(String argv[]){
int[] dl=new int[10];
for(i=0;i < dl.length;i++)
System.out.println(dl[i]);
}
}
OPTIONS
1) a sequence of 10 0's will be printed
2) Error: dl is used before it is initialized
3) Error: DLSoftwareSolutions must be declared abstract
4) IndexOutOfBoundes Error
ANSWER 3
The answer is 3) DLSoftwareSolutions must be declared abstract.
A class that contains an abstract method must itself be declared as abstract.
Exam Tip
---------------------------------------------------
abstract methods must be implemented by a subclass, so they must be inheritable.
abstract methods cannot be private.
abstract methods cannot be final.
abstract methods may have parameters, a return type, and optional throws clause, but are not implemented.
abstract methods end in a semicolon-no curly braces.
A single abstract method in a class means the whole class must be abstract.
An abstract class can have both abstract and nonabstract methods.
All Application Badges
Free
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Android
2.1+
2.1+
Bug
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Android app
App History & Updates
What's Changed
Incorrect Answers fixed.
Incorrect Answers fixed.
More downloads Java SCJP on Android reached 50 000 - 100 000 downloads
More downloads Java SCJP on Android reached 10 000 - 50 000 downloads
Version update Java SCJP on Android was updated to version 1.32
Version update Java SCJP on Android was updated to version 1.29
What are users saying about Java SCJP on Android
Q
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App is very helpful for developers ,better to add statistics small graphs after one or two attempts
M
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I would have given 5 stars but the description of answer is not dat good otherwise amazng :)
A
by A####:
by A####:
Good to have in ur phone to use anywhere if u r studying for this exam.
M
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by M####:
Description about answer is good.
M
by M####:
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Tem perguntas erradas no meio
M
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by M####:
Cool thanks.
M
by M####:
by M####:
Books and this excellent app combined, I managed to pass the exam with 86%. Every candidate should grab this!
B
by B####:
by B####:
Nice app.. :-)
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by T####:
by T####:
Good to have in ur phone to use anywhere if u r studying for this exam.
M
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by M####:
Accurate exam questions, and good tips on the answers.
Y
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by Y####:
Best there is. Genius!
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NICE
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Excellent
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by S####:
Super fun and useful
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by D####:
Amazing!
M
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by M####:
Good app
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by S####:
by S####:
Ui would be better to have a pop up when user selects wrong answer and when he press ok it should redirect to next question. Now uses has to press next button twice . .
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by S####:
by S####:
Best one there is. Thanks devs
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by S####:
Nice app
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by Z####:
by Z####:
Appreciate your effort for making this app but UI need further improvements. Major bug is Screen goes to sleep mode while reading questions.
X
by X####:
by X####:
Ui would be better to have a pop up when user selects wrong answer and when he press ok it should redirect to next question. Now uses has to press next button twice . .
J
by J####:
by J####:
I'd recommend this one to get you started, not the ultimate solution though. Would like more questions. 600+ questions would make this app an ultimate solution to crack the exam. Keep it up! :)
X
by X####:
by X####:
Simple yet delivers what it says. Helped me a lot to clear my ocpjp exam Thank you developers. Cheers!!!
X
by X####:
by X####:
Very good app
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very good collection
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:-)
X
by X####:
by X####:
Would be even better if showed answer details even if got correct. Also maybe allow list access to all questions to easily get back to question
B
by B####:
by B####:
The best Java app in Android market. Thanks guys. Keep it up.
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by X####:
Just beginning to learn java and this is a wonderful tool to learn new concepts. Might I suggest that the same explanation that is given for incorrect answers also be given when the correct answer is selected. This way when an answer is "guessed" correctly we can still get the benefit of the explanation.
C
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by C####:
It gives you explanations of the answer that you miss, which is great to learn faster
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But a bit simple
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Has wrong answers
Q
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by Q####:
Fantastic app, has by far the most amount and varied questions of any scjp apps i have tried, and its all free with no adds. Thanks.
X
by X####:
by X####:
It's a very practical app. I would really like a flag function in order to report the questions i believe to be erronated.
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by X####:
Excellent & challenging !
X
by X####:
by X####:
Nice app..
X
by X####:
by X####:
Really "awakening" examples
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by U####:
by U####:
Love it
Q
by Q####:
by Q####:
Could use some more feedback on reviewing wrongly answered questions, but for the rest a very nice and useful little app!
by S####:
Keep going