Oracle 1z1-811 Exam Info and Free Practice Test PassTestking [Q27-Q49]

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NO.27 Given these class definitions:

Which class or classes compile?

only MyClassB, MyClassC, and MyClassD

only MyClassB

MyClassA, MyClassB, MyClassC, and MyClassD

only MyClassB and MyClassD

NO.28 コードの断片が与えられている：

どちらが正しいか？

A compilation error occurs at line 5.

A compilation error occurs at line 3.

The code compiles without errors.

A compilation error occurs at line 7.

NO.29 コードの断片が与えられている：

その結果は？

25.67

25.00

25.7

30位 Which statement is true about primitive variables?

They can be compared with the == operator.

They can be compared with the equals method only.

They cannot be compared.

They can be compared with the compareTo method only.

NO.31 Given the classes:

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

Replace line n1 with import fruits.Apple.getApple();

Replace line n1 with import fruits.Apple;

Replace line n1 with import fruits;

Replace line n2 with fruits.Apple apple = new Apple ();

Replace line n2 with fruits.Apple apple = new fruits.Apple ();

NO.32 Identify two valid data types for the operands of the addition (+) operator?

ストリング

boolean

numeric

array

NO.33 与えられた：

Which statement is true about the main method?

It can be a non-static method.

Its parameter can be of type Integer [].

It cannot be defined in a non-public class.

It cannot be invoked by its name.

NO.34 Given the code

その結果は？

The program executes indefinitely.

num = 100

num = 99

num = 0

NO.35 与えられた：

その結果は？

[null:-]

[ : ]

[null:null]

[:null]

NO.36 Which statement is true about a mutator method?

It replaces the default constructor.

It returns mutated instance members.

It must be declared private.

It can be used to assign data to instance members.

NO.37 与えられた：

その結果は？

300

100

200

A compilation error occurs.

第38位 Which statement is true about exception handling?

At least one catch block must accompany a try statement.

All statements in a try block are executed, even if an exception occurs in the middle of the try block.

At least one statement in a try block must throw an exception.

All catch blocks must be ordered from general to most specific.

NO.39 Given the code:

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

int sum(int a, b) {

int sum(int a, int b) {

int sum(int, int) {

int sum(int[] a, b) {

40位 Which statement is valid?

int 2 totalScore = 0;

int total-score = 0;

int totalScore2 = 0;

int total score = 0;

NO.41 Given the contents of Student.java:

どちらが正しいか？

The commands:
javac Student.java
java Student Richard William Java
throw an error about a missing Course.class file.

The commands:
javac Course.java
javac Student.java
java Course
java Student “Richard William” Java
are used to print Richard William is studying Java.

The commands:
javac Student.java
java Student Richard William Java
are used to print Richard William is studying Java.

The commands:
javac Student.java
java Student “Richard William” Java
are used to print Richard William is studying Java.

NO.42 コードの断片が与えられている：

その結果は？

false false -1

true false 0

true true 0

false true -1

NO.43 Identify three advantages of object-oriented programming.

separation of state and behavior

modularity

information sharing

code reuse

information hiding

NO.44 与えられた：

その結果は？

Compilation fails. To make it compile, replace line n1 with var1 = 0;

Compilation fails. To make it compile, replace line n2 with var2 = 0;

Nothing is printed.

NO.45 コードの断片が与えられている：

その結果は？

lotus jasmine

lotus

A compilation error occurs.

lotus lily

NO.46 コードの断片が与えられている：

その結果は？

擬似
擬似

true
true

true
擬似

擬似
true

NO.47 コードの断片が与えられている：

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

System.out.println(name + “:” + count);

System.out.println(c.name + “:” + count);

System.out.println(c.name + “:” + Course.count);

System.out.println(Course.name + “:” + c.count);

NO.48 Which two statements are true about the Java Runtime Environment (JRE)?

It is responsible for garbage collection.

It interprets bytecode stored in a .class file.

It contains the JDK and Java APIs.

It is platform independent.

You must install the JRE to compile a .java file.

49位 コードの断片が与えられている：

Which code fragment, when inserted at line n1, enables it to print Rita is 14 years old?

System.out.println(“%s is %d years old” +name+age);

System.out.println(“%s is %n years old” name, age);

System.out.printf(“%s is %d years old”, name, age);

System.out.printf(“%s is %n years old”, name, age);

ローディング …

Get to know about the Passing Score, Duration & Questions for the Oracle 1Z0-811 Exam

Number of Questions: 75 questions
言語英語
Time Duration: 150 minutes
The passing score: 65%

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