[2023年06月07日]1z0-811認定ガイド問題と解答トレーニング
1z0-811認定お試しセット最新1z0-811のPDF問題集
質問 # 16
Which method identifier is correct according to Java naming conventions?
- A. calculatebill
- B. Calculator
- C. BillCalculator
- D. calculateBill
正解：B
質問 # 17
Given the classes:
Which two modifications, independently, enable the Salad.java file to compile?
- A. Replace line n1 with import fruits.Apple;
- B. Replace line n2 with fruits.Apple apple = new fruits.Apple ();
- C. Replace line n2 with fruits.Apple apple = new Apple ();
- D. Replace line n1 with import fruits;
- E. Replace line n1 with import fruits.Apple.getApple();
正解：C、E
質問 # 18
Given the code fragment:
What is the result?
- A. [jasmine, rose, lily]
- B. A runtime exception is thrown.
- C. [jasmine, lily, lotus]
- D. [jasmine, rose, lotus, lily]
正解：B
質問 # 19
Identify three features of the Java programming language.
- A. dynamically typed
- B. strongly typed
- C. multithreaded
- D. distributed
- E. direct memory management
正解：A、C、D
質問 # 20
Which two statements are true about the Java Runtime Environment (JRE)?
- A. You must install the JRE to compile a .java file.
- B. It is responsible for garbage collection.
- C. It contains the JDK and Java APIs.
- D. It is platform independent.
- E. It interprets bytecode stored in a .class file.
正解：D、E
質問 # 21
Given the code fragment:
What is the result?
- A. false true -1
- B. true true 0
- C. false false -1
- D. true false 0
正解：D
質問 # 22
Identify two features of Java.
- A. robust
- B. platform independent
- C. single threaded
- D. architecture dependent
正解：A、B
質問 # 23
Given the code fragment:
What is the result?
- A. A runtime exception is thrown.
- B. A compilation error occurs.
- C. pen pencil erasers paper
- D. paper pen pencil erasers
正解：A
質問 # 24
Given the code fragment:
At which line does a compilation error occur?
- A. lines 5 and 7
- B. lines 6 and 8
- C. line 5
- D. line 7
正解：C
質問 # 25
Given the code fragment:
Which two code fragments are valid at line 2?
- A. {
private int num;
} - B. package p1;
- C. import java.util.*;
public void display() {
List<Integer> nums = new ArrayList<> ();
} - D. private String name = "John";
public void display() {
System.out.print(name);
} - E. for (int count = 0; count < 5; count++) {
System.out.print(count);
}
正解：B、D
質問 # 26
Given the code fragment:
What is the result?
- A. true
false - B. true
true - C. false
false - D. false
true
正解：C
質問 # 27
Given:
What is the result?
- A. Nothing is printed.
- B. Compilation fails. To make it compile, replace line n1 with var1 = 0;
- C. Compilation fails. To make it compile, replace line n2 with var2 = 0;
- D. 0
正解：C
質問 # 28
Given the code fragment:
What is the result?
- A. 0
- B. A compilation error occurs.
- C. 1
- D. 2
正解：A
質問 # 29
Given the code fragment:
Which statement, when inserted at line n1, enables the code to print 0 2 4 6 8 10?
- A. count = count++;
- B. count = (count++) +1;
- C. count =+ 2;
- D. count += 2;
正解：D
質問 # 30
Given:
What is the result?
- A. 0
- B. A compilation error occurs in the main method.
- C. A compilation error occurs in the modify method.
- D. 1
正解：B
質問 # 31
Identify two class variables.
- A. public int size = 10;
- B. private Measure cm;
- C. private static int numberOfSquares = 20;
- D. public static int counter = 0;
- E. int scale = 35;
正解：C、D
質問 # 32
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. Nothing is printed.
- D. 2
正解：D
質問 # 33
Given:
What is the result?
- A. 100
200 - B. A compilation error occurs at line n1.
- C. A compilation error occurs at line n2.
- D. 100
100
正解：D
質問 # 34
Given the code fragment:
What is the result?
- A. true
false - B. false
false - C. true
true - D. false
true
正解：C
質問 # 35
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