[2023年12月]更新の1z1-811認定実際の問題を提供します [Q12-Q36]

[2023年12月]更新の1z1-811認定実際の問題を提供します

更新されたのは1z1-811問題集PDFで1z1-811リアル有効なブレーン問題集には77問があります！

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質問 # 12
Given the code fragment:

What is the result?

A. 0
B. 1
C. 2
D. A compilation error occurs.

正解：C

質問 # 13
Given the code fragment:

What is the result?

A. 0
B. 1
C. 2
D. The program executes an infinite number of times.

正解：A

質問 # 14
Which statement is true about primitive variables?

A. They can be compared with the compareTo method only.
B. They can be compared with the equals method only.
C. They can be compared with the == operator.
D. They cannot be compared.

正解：B

質問 # 15
Given the code fragment:

What is the result?

A. [BETATEST]
B. [ betaTest ]
C. [ BETATEST ]
D. [betaTest]

正解：A

質問 # 16
Given the code fragment:

What is the result?

A. true true 0
B. false true -1
C. true false 0
D. false false -1

正解：C

質問 # 17
Given the code fragment:

What is the result?

A. false
true
B. false
false
C. true
true
D. true
false

正解：B

質問 # 18
Which two components can class declarations include?

A. The public modifier
B. The main method
C. Interfaces implemented by the class
D. A list of instance methods

正解：A、C

質問 # 19
Identify two Java reserved words.

A. array
B. exception
C. true
D. string
E. this

正解：C、E

質問 # 20
Which package would you import to use the Random class?

A. java.util
B. java.io
C. java.math
D. java.lang

正解：A

質問 # 21
Given the code:

Which code fragment, when inserted at line n1, enables the code to print sum is 30?

A. int sum(int a, b) {
B. int sum(int a, int b) {
C. int sum(int, int) {
D. int sum(int[] a, b) {

正解：D

質問 # 22
Given:

At which line does a compilation error occur?

A. line 3
B. line 2
C. line 7
D. line 5

正解：B

質問 # 23
Given the code fragment:

What is the result?

A. true
true
true
false
B. false
false
false
false
C. true
false
false
false
D. true
true
true
true

正解：D

質問 # 24
Which two statements are true about the Java Runtime Environment (JRE)?

A. You must install the JRE to compile a .java file.
B. It interprets bytecode stored in a .class file.
C. It is platform independent.
D. It contains the JDK and Java APIs.
E. It is responsible for garbage collection.

正解：B、C

質問 # 25
Which statement is true about exception handling?

A. All statements in a try block are executed, even if an exception occurs in the middle of the try block.
B. At least one statement in a try block must throw an exception.
C. At least one catch block must accompany a try statement.
D. All catch blocks must be ordered from general to most specific.

正解：D

質問 # 26
Given the code fragment:

What is the result?

A. lotus jasmine
B. lotus lily
C. lotus
D. A compilation error occurs.

正解：B

質問 # 27
Given the code fragment:

Which code fragment, when inserted at line n1, enables the code to print Java Programming:1?

A. System.out.println(name + ":" + count);
B. System.out.println(c.name + ":" + count);
C. System.out.println(Course.name + ":" + c.count);
D. System.out.println(c.name + ":" + Course.count);

正解：D

質問 # 28
You have been asked to develop a Java program that prints the elements of an array in reverse order.
Which looping statement cannot be used to meet the requirement?

A. while
B. standard for
C. do-while
D. enhanced for

正解：C

質問 # 29
Given these class definitions:

Which class or classes compile?

A. only MyClassB and MyClassD
B. only MyClassB, MyClassC, and MyClassD
C. only MyClassB
D. MyClassA, MyClassB, MyClassC, and MyClassD

正解：A

質問 # 30
Given the code fragment:

What is the result?

A. Selected Chocolate flavor.
B. An ArrayIndexOutofBoundsException is thrown at run time.
C. Selected Chocolate flavor.
D. Selected null flavor.

正解：B

質問 # 31
Given:

Which statement, when inserted at line n1, enables the Course class to compile?

A. double newFee;
B. int newFee;
C. float newFee;
D. long newFee;

正解：A

質問 # 32
Given the code fragment:

Which code fragment can be inserted at line n1 to enable the code to compile?

A. int[] num;
B. int[10] num;
C. new int num[];
D. int num[10];

正解：A

質問 # 33
Given the code fragment:

What is the result?

A. Invalid divisor.
B. A compilation error occurs.
C. Unknown issues.
D. Unknown issues.
Invalid divisor.

正解：B

質問 # 34
Identify two features of Java.

A. architecture dependent
B. robust
C. platform independent
D. single threaded

正解：B、C

質問 # 35
Given the code fragment:

Which two code fragments are valid at line 2?

A. import java.util.*;
public void display() {
List<Integer> nums = new ArrayList<> ();
}
B. private String name = "John";
public void display() {
System.out.print(name);
}
C. package p1;
D. {
private int num;
}
E. for (int count = 0; count < 5; count++) {
System.out.print(count);
}