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Q71. Given: 

What is the result? 

A. The program prints nothing 

B. d 

C. A S StringIndexOutOfBoundsException is thrown at runtime. 

D. AnArrayIndexOutOfBoundsException is thrown at runtime. 

E. A NullPointerException is thrown at runtime. 

Answer:


Q72. Which statement initializes a stringBuilder to a capacity of 128? 

A. StringBuilder sb = new String ("128"); 

B. StringBuilder sb = StringBuilder.setCapacity (128); 

C. StringBuilder sb = StringBuilder.getInstance (128); 

D. StringBuilder sb = new StringBuilder (128); 

Answer:


Q73. ArrayList<Integer> list = new ArrayList<>(1); 

2. list.add(1001); 

3. list.add(1002); 

4. System.out.println(list.get(list.size())); 

What is the result? 

A. Compilation fails due to an error on line 1. 

B. An exception is thrown at run time due to error on line 3 

C. An exception is thrown at run time due to error on line 4 

D. 1002 

Answer:


Q74. Given the following code: 

What will make this code compile and run? 

A. Change line 2 to the following: 

Public int price 

B. Change line 4 to the following: 

int price = new simple (); 

C. Change line 4 to the following: 

Float price = new simple (); 

D. Change line 5 to the following: 

Price = 4f; 

E. Change line 5 to the following: 

price.price = 4; 

F. Change line 5 to the following: 

Price = (float) 4: 

G. Change line 5 to the following: 

Price = (Simple) 4; 

H. The code compiles and runs properly; no changes are necessary 

Answer:


Q75. 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 

Answer:


Q76. Why will the code not compile? 

A. A static field cannot be private. 

B. The getLetter method has no body. 

C. There is no setLetter method. 

D. The letter field is uninitialized. 

E. It contains a method named Main instead of ma 

Answer:


Q77. Given: 

What is the result? 

A. Marrown 

String out of limits 

JesOran 

B. Marrown 

String out of limits 

Array out of limits 

C. Marrown 

String out of limits 

D. Marrown 

NanRed 

JesOran 

Answer:


Q78. Given: 

What three modifications are necessary to ensure that the class is being properly encapsulated? 

This class is poorly encapsulated. You need to change the circle class to compute and return the area instead. 

A. Change the access modifier of the setradius () method to private 

B. Change the getArea () method public double getArea () { return area; } 

C. When the radius is set in the Circle constructor and the setRadius () method, recomputed the area and store it into the area field 

D. Change the getRadius () method: 

public double getRadius () { 

area = Math.PI * radius * radius; 

return radius; 

Answer: BCD 


Q79. Given the code format: 

Which code fragment must be inserted at line 6 to enable the code to compile? 

A. DBConfiguration f; return f; 

B. Return DBConfiguration; 

C. Return new DBConfiguration; 

D. Retutn 0; 

Answer:


Q80. public class ForTest { 

public static void main(String[] args) { 

int[] arrar = {1,2,3}; 

for ( foo ) { 

Which three are valid replacements for foo so that the program will compiled and run? 

A. int i: array 

B. int i = 0; i < 1; i++ 

C. ;; 

D. ; i < 1; i++ 

E. ; i < 1; 

Answer: ABC