Free Jan-2023 UPDATED Oracle 1z1-811 Exam Questions & Answer
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NEW QUESTION 21
Given:
Which statement is true about the main method?
- A. It can be a non-static method.
- B. It cannot be defined in a non-public class.
- C. It cannot be invoked by its name.
- D. Its parameter can be of type Integer [].
Answer: C
NEW QUESTION 22
Given these class definitions:
Which class or classes compile?
- A. only MyClassB
- B. MyClassA, MyClassB, MyClassC, and MyClassD
- C. only MyClassB, MyClassC, and MyClassD
- D. only MyClassB and MyClassD
Answer: D
NEW QUESTION 23
Given the code fragment:
Which code fragment, when inserted at line n1, enables the code to print one?
- A. char var = '1';
- B. String var = "1";
- C. int var = 1;
- D. String var = 1;
Answer: B
NEW QUESTION 24
Given the code fragment:
What is the result?
- A. A compilation error occurs.
- B. lotus jasmine
- C. lotus
- D. lotus lily
Answer: D
NEW QUESTION 25
Given the code fragment:
Which code fragment can be inserted at line n1 to enable the code to print 0.0?
- A. Ball b = new Ball(0.0);
- B. Ball b = new Ball();
- C. Ball.weight = 0.0;
- D. Ball b = null;
b.weight = 0.0;
Answer: B
NEW QUESTION 26
Given the code
What is the result?
- A. The program executes indefinitely.
- B. num = 99
- C. num = 100
- D. num = 0
Answer: B
NEW QUESTION 27
Identify three advantages of object-oriented programming.
- A. information sharing
- B. information hiding
- C. code reuse
- D. modularity
- E. separation of state and behavior
Answer: B,C,D
NEW QUESTION 28
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 = 1; idx < arr.length; idx+=2) {
System.out.print (arr[idx]);
} - C. for(int idx = 0; idx < arr.length; idx++) {
System.out.print (arr[idx]);
} - D. for(int idx = 1; idx < arr.length-1; idx++) {
System.out.print (arr[idx++]);
}
Answer: A
NEW QUESTION 29
Given the contents of Student.java:
Which statement is true?
- A. The commands:
javac Course.java
javac Student.java
java Course
java Student "Richard William" Java
are used to print Richard William is studying Java. - B. The commands:
javac Student.java
java Student "Richard William" Java
are used to print Richard William is studying Java. - C. The commands:
javac Student.java
java Student Richard William Java
are used to print Richard William is studying Java. - D. The commands:
javac Student.java
java Student Richard William Java
throw an error about a missing Course.class file.
Answer: D
NEW QUESTION 30
Given:
At which line does a compilation error occur?
- A. line 2
- B. line 7
- C. line 5
- D. line 3
Answer: A
NEW QUESTION 31
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. The program executes an infinite number of times.
- D. 2
Answer: A
NEW QUESTION 32
Given the code fragment:
What is the result?
- A. true
false - B. true
true - C. false
true - D. false
false
Answer: B
NEW QUESTION 33
Which statement is true about exception handling?
- A. At least one catch block must accompany a try statement.
- B. All catch blocks must be ordered from general to most specific.
- C. At least one statement in a try block must throw an exception.
- D. All statements in a try block are executed, even if an exception occurs in the middle of the try block.
Answer: B
NEW QUESTION 34
Given:
And the code fragment:
What is the result?
- A. White : White
- B. A compilation error occurs at line n1.
- C. null: null
- D. White : null
Answer: C
NEW QUESTION 35
Given the code fragment:
Which statement, when inserted at line n1, enables the code to print 0 2 4 6 8 10?
- A. count =+ 2;
- B. count += 2;
- C. count = (count++) +1;
- D. count = count++;
Answer: B
NEW QUESTION 36
Which method identifier is correct according to Java naming conventions?
- A. calculatebill
- B. BillCalculator
- C. calculateBill
- D. Calculator
Answer: D
NEW QUESTION 37
Given the code fragment:
What is the result?
- A. 10
10 - B. 10
14 - C. 9
9 - D. 9
12
Answer: A
NEW QUESTION 38
Which statement is true about a Java method?
- A. It cannot be defined as static final.
- B. It cannot be defined within another method.
- C. It must accept a parameter and return a value.
- D. It must be declared with an access modifier.
Answer: B
NEW QUESTION 39
Given the code fragment:
What is the result?
- A. An ArrayIndexOutofBoundsException is thrown at run time.
- B. Selected Chocolate flavor.
- C. Selected Chocolate flavor.
- D. Selected null flavor.
Answer: A
NEW QUESTION 40
Given:
What is the result?
- A. 0
- B. A compilation error occurs.
- C. 1
- D. 2
Answer: B
NEW QUESTION 41
Given:
What is the result?
- A. A compilation error occurs.
- B. 0
- C. 1
- D. 2
Answer: B
NEW QUESTION 42
Given the code fragment:
What is the result?
- A. [BETATEST]
- B. [betaTest]
- C. [ betaTest ]
- D. [ BETATEST ]
Answer: A
NEW QUESTION 43
Which statement is true about primitive variables?
- A. They can be compared with the compareTo method only.
- B. They cannot be compared.
- C. They can be compared with the equals method only.
- D. They can be compared with the == operator.
Answer: C
NEW QUESTION 44
......
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