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Q21. Which three are valid types for switch?

A. int

B. float

C. double

D. integer

E. String

F. Float

Answer: ADE

Q22. Which two statements are true for a two-dimensional array of primitive data type? 

A. It cannot contain elements of different types. 

B. The length of each dimension must be the same. 

C. At the declaration time, the number of elements of the array in each dimension must be 


D. All methods of the class object may be invoked on the two-dimensional array. 

Answer: CD 

Q23. Given: 

What is the result? 

A. 10 : 22 : 20 

B. 10 : 22 : 22 

C. 10 : 22 : 6 

D. 10 : 30 : 6 


Q24. Given: 

What is the result? 

A. One 

B. Two 

C. Three 

D. Compilation fails 


Q25. which three lines are illegal? 

A. line 3 

B. line 4 

C. line 5 

D. line 6 

E. line 10 

F. line 11 

G. line 12 

H. line 13 

Answer: CDH 

Q26. Given the code fragment: 

What is the result? 

A. 10 8 6 4 2 0 

B. 10 8 6 4 2 

C. An Arithmetic Exception is thrown at runtime 

D. The program goes into an infinite loop outputting: 10 8 6 4 2 0. . . 

E. Compilation fails 


Q27. racle 1z0-803 : Practice Test 

j = (3 * ((2+4) + 5)); 

System.out.println("i:"+ i + "\nj":+j); 

What is the result? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 


Q28. Given the code fragment: 

A. Super Sub Sub 

B. Contract Contract Super 

C. Compilation fails at line n1 

D. Compilation fails at line n2 


Q29. What is the result? 

A. They match They really match 

B. They really match 

C. They match 

D. Nothing Prints 

E. They really match They really match 


Q30. What is the result? 

A. sc: class.Object asc: class.AnotherSampleClass 

B. sc: class.SampleClass asc: class.AnotherSampleClass 

C. sc: class.AnotherSampleClass asc: class.SampleClass 

D. sc: class.AnotherSampleClass asc: class.AnotherSampleClass