最新2023年07月28日リアルな1z0-811試験問題集解答で有効な1z0-811問題集PDF [Q31-Q52]

最新2023年07月28日リアルな1z0-811試験問題集解答で有効な1z0-811問題集PDF

Oracle 1z0-811試験問題集でPDF問題とテストエンジン

質問 # 31
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 # 32
Given:

Which statement is true about the main method?

A. It cannot be invoked by its name.
B. It can be a non-static method.
C. Its parameter can be of type Integer [].
D. It cannot be defined in a non-public class.

正解：A

質問 # 33
Which statement is true about a Java method?

A. It must be declared with an access modifier.
B. It must accept a parameter and return a value.
C. It cannot be defined as static final.
D. It cannot be defined within another method.

正解：D

質問 # 34
Identify two features of Java.

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

正解：A、B

質問 # 35
Given:

And the code fragment:

What is the result?

A. null: null
B. A compilation error occurs at line n1.
C. White : White
D. White : null

正解：A

質問 # 36
Given the code fragment:

What is the result?

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

正解：C

質問 # 37
Given the code fragment:

What is the result?

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

正解：C

質問 # 38
Which two Java reserved words are used to implement encapsulation?

A. static
B. public
C. final
D. private
E. extends

正解：B、D

質問 # 39
Given the code fragment:

What is the result?

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

正解：C

質問 # 40
Given the code fragment:

What is the result?

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

正解：C

質問 # 41
Given:

What is the result?

A. A compilation error occurs at line n1.
B. 100
200
C. 100
100
D. A compilation error occurs at line n2.

正解：C

質問 # 42
Which method identifier is correct according to Java naming conventions?

A. calculatebill
B. calculateBill
C. Calculator
D. BillCalculator

正解：C

質問 # 43
Given the classes:

Which two modifications, independently, enable the Salad.java file to compile?

A. Replace line n1 with import fruits;
B. Replace line n1 with import fruits.Apple;
C. Replace line n2 with fruits.Apple apple = new fruits.Apple ();
D. Replace line n2 with fruits.Apple apple = new Apple ();
E. Replace line n1 with import fruits.Apple.getApple();

正解：D、E

質問 # 44
Given:

What is the result?

A. Nothing is printed.
B. Compilation fails. To make it compile, replace line n1 with var1 = 0;
C. 0
D. Compilation fails. To make it compile, replace line n2 with var2 = 0;

正解：D

質問 # 45
Given the code fragment:

What is the result?

A. 0
B. Nothing is printed.
C. 1
D. 2

正解：A

質問 # 46
Given the code fragment:

What is the result?

A. Peter
Julia
B. A runtime exception is thrown.
C. Julia
Peter
D. A compilation error occurs.

正解：C

質問 # 47
Given the code fragment:

What is the result?

A. 10 20
10 20
B. 10 20
10 15 20
C. A runtime exception is thrown.
D. A compilation error occurs.

正解：D

質問 # 48
Given:

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

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

正解：C

質問 # 49
Given the code fragment:

Which two code fragments are valid at line 2?

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