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NEW QUESTION # 35
Which statement is true about primitive variables?
- A. They cannot be compared.
- B. They can be compared with the equals method only.
- C. They can be compared with the compareTo method only.
- D. They can be compared with the == operator.
Answer: B
NEW QUESTION # 36
Given the code fragment:
Which code fragment can be inserted at line n1 to enable the code to compile?
- A. int num[10];
- B. int[10] num;
- C. int[] num;
- D. new int num[];
Answer: C
NEW QUESTION # 37
Given:
What is the result?
- A. 0
- B. A compilation error occurs.
- C. 1
- D. 2
Answer: D
NEW QUESTION # 38
Given:
What is the result?
- A. The code fails to compile. To make it compile, at line n1 insert:
Bus () { } - B. The code compiles and prints:
default - C. The code fails to compile. To make it compile, at line n2 insert:
this (); - D. The code fails to compile. To make it compile, at line n1 insert:
this () { }
Answer: A
Explanation:
luxury
NEW QUESTION # 39
Which package would you import to use the Random class?
- A. java.io
- B. java.util
- C. java.math
- D. java.lang
Answer: B
NEW QUESTION # 40
Given the code fragment:
What is the result?
- A. false
false - B. false
true - C. true
false - D. true
true
Answer: A
NEW QUESTION # 41
Given the code fragment:
What is the result?
- A. 0 : 1
- B. 2 : 0
- C. 3 : 1
- D. 3 : 2
Answer: D
NEW QUESTION # 42
Given the code fragment:
At which line does a compilation error occur?
- A. line 7
- B. lines 6 and 8
- C. line 5
- D. lines 5 and 7
Answer: C
NEW QUESTION # 43
Given:
What is the result?
- A. 0
- B. A compilation error occurs.
- C. 1
- D. 2
Answer: B
NEW QUESTION # 44
Given the code fragment:
Which two code fragments are valid at line 2?
- A. package p1;
- B. import java.util.*;
public void display() {
List<Integer> nums = new ArrayList<> ();
} - C. private String name = "John";
public void display() {
System.out.print(name);
} - D. {
private int num;
} - E. for (int count = 0; count < 5; count++) {
System.out.print(count);
}
Answer: A,C
NEW QUESTION # 45
Given:
At which line does a compilation error occur?
- A. line 7
- B. line 3
- C. line 2
- D. line 5
Answer: C
NEW QUESTION # 46
Which statement is true about a mutator method?
- A. It must be declared private.
- B. It replaces the default constructor.
- C. It returns mutated instance members.
- D. It can be used to assign data to instance members.
Answer: C
NEW QUESTION # 47
Given:
Which statement, when inserted at line n1, enables the Course class to compile?
- A. long newFee;
- B. float newFee;
- C. int newFee;
- D. double newFee;
Answer: D
NEW QUESTION # 48
What is the meaning of "write once, run anywhere" in Java?
- A. It is a marketing statement because Java programs must be compiled for a specific platform in order to run.
- B. Java programs can run on any Java Virtual Machine without being recompiled.
- C. Java programs, after being compiled, can run on any platform or device even without a Java Virtual Machine.
- D. Java programs are designed to run only in web browsers and, thus, can run wherever there is a browser.
Answer: B
NEW QUESTION # 49
Given the code fragment:
What is the result?
- A. Nothing is printed.
- B. 0
- C. 1
- D. 2
Answer: B
NEW QUESTION # 50
Given the code fragment:
Which for loop statement can be used to print 135?
- A. for(int idx = 0; idx < arr.length; idx+=2) {
System.out.print (arr[idx]);
} - B. for(int idx = 0; idx < arr.length; idx++) {
System.out.print (arr[idx]);
} - C. for(int idx = 1; idx < arr.length-1; idx++) {
System.out.print (arr[idx++]);
} - D. for(int idx = 1; idx < arr.length; idx+=2) {
System.out.print (arr[idx]);
}
Answer: A
NEW QUESTION # 51
Given:
What is the result?
- A. Nothing is printed.
- B. 0
- C. Compilation fails. To make it compile, replace line n1 with var1 = 0;
- D. Compilation fails. To make it compile, replace line n2 with var2 = 0;
Answer: D
NEW QUESTION # 52
You have a microprocessor board, such as Raspberry PI, wired to control a drone.
Which edition of Java is geared towards use of simple, closed systems with constrained memory requirements, such as a microprocessor board?
- A. Java Enterprise Edition
- B. Java Micro Edition
- C. Java Standard Edition with a Compact Profile
- D. Java SE Embedded
Answer: D
NEW QUESTION # 53
Given the code fragment:
What is the result?
- A. 9
9 - B. 10
14 - C. 9
12 - D. 10
10
Answer: D
NEW QUESTION # 54
Which two Java reserved words are used to implement encapsulation?
- A. final
- B. private
- C. extends
- D. static
- E. public
Answer: B,E
NEW QUESTION # 55
Given:
What is the result?
- A. [:null]
- B. [null:-]
- C. [ : ]
- D. [null:null]
Answer: B
NEW QUESTION # 56
Given:
And the code fragment:
Which code fragment can be inserted at line n1 to enable the code to print All the best?
- A. writeMsg();
- B. Messenger.writeMsg();
- C. m.writeMsg();
- D. void writeMsg();
Answer: B
NEW QUESTION # 57
Given the code fragment:
What is the result?
- A. Queen
- B. Jack
- C. A compilation error occurs at line n1.
- D. The program prints either Jack or Queen.
Answer: C
NEW QUESTION # 58
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