Point Checklist: java se 7 programmer i 1z0 803

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Q21. Given: 

What will be the output? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:

Q22. Given: 

What should statement1, statement2, and statement3, be respectively, in order to produce the result? 

Shape: constructor 

Square: foo 

Shape: foo 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

E. Option E 

Answer:

Q23. Given: 

Which line causes a compilation error? 

A. line x1 

B. line x2 

C. line x3 

D. line x4 

Answer:

Q24. Given: 

What is the result? 

A. Red 0 

Orange 0 

Green 3 

B. Red 0 

Orange 0 

Green 6 

C. Red 0 

Orange 1 

D. Green 4 

E. Compilation fails 

Answer:

Q25. 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 

Answer: BE 

Q26. Given: 

What is the result? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:

Q27. Int [] [] array = {{0}, {0, 1}, {0, 2, 4}, {0, 3, 6, 9}, {0, 4, 8, 12, 16}}; 

Systemout.printIn(array [4] [1]); 

System.out.printIn (array) [1] [4]); 

What is the result? 

A. 4 Null 

B. Null 4 

C. An IllegalArgumentException is thrown at run time 

D. 4 An ArrayIndexOutOfBoundException is thrown at run time 

Answer:

Q28. Given the fragment: 

What is the result? 

A. 13480.0 

B. 13480.02 

C. Compilation fails 

D. An exception is thrown at runtime 

Answer:

Q29. What is the result when this program is executed? 

A. Bob's Name: Bob 

B. Bob's Name: Jian 

C. Nothing prints 

D. Bob’s name 

Answer:

Q30. Given the code fragment: 

String name = "Spot"; 

int age = 4; 

String str ="My dog " + name + " is " + age; 

System.out.println(str); 

And 

StringBuilder sb = new StringBuilder(); 

Using StringBuilder, which code fragment is the best potion to build and print the following 

string My dog Spot is 4 

A. sb.append("My dog " + name + " is " + age); System.out.println(sb); 

B. sb.insert("My dog ").append( name + " is " + age); System.out.println(sb); 

C. sb.insert("My dog ").insert( name ).insert(" is " ).insert(age); System.out.println(sb); 

D. sb.append("My dog ").append( name ).append(" is " ).append(age); 

System.out.println(sb); 

Answer: AD 

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