Regenerate Oracle 1Z0-803 examcollection

Q1. Given the code fragment: 

Q2. Which code fragment cause a compilation error? 

A. flat flt = 100F; 

B. float flt = (float) 1_11.00; 

C. float flt = 100; 

D. double y1 = 203.22; floatflt = y1 

E. int y2 = 100; floatflt = (float) y2; 

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Q3. Given the code fragment: 

interface SampleClosable { 

public void close () throws java.io.IOException; 

} 

Which three implementations are valid? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

E. Option E 

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Q4. Given: 

Which line causes a compilation error? 

A. line x1 

B. line x2 

C. line x3 

D. line x4 

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Q5. Given: 

Which two classes use the shape class correctly? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

E. Option E 

F. Option F 

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Q6. Which three are bad practices? 

A. Checking for ArrayIndexoutofBoundsException when iterating through an array to determine when all elements have been visited 

B. Checking for Error and. If necessary, restarting the program to ensure that users are unaware problems 

C. Checking for FileNotFoundException to inform a user that a filename entered is not valid 

D. Checking for ArrayIndexoutofBoundsException and ensuring that the program can recover if one occur 

E. Checking for an IOException and ensuring that the program can recover if one occurs 

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Q7. An unchecked exception occurs in a method dosomething() Should other code be added in the dosomething() method for it to compile and execute? 

A. The Exception must be caught 

B. The Exception must be declared to be thrown. 

C. The Exception must be caught or declared to be thrown. 

D. No other code needs to be added. 

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