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Oracle Java SE 11 Developer Sample Questions (Q259-Q264):

NEW QUESTION # 259
Given:

What is the result?
A)

B)

C)

D)

A. Option DB. Option CC. Option BD. Option A

Answer: D


NEW QUESTION # 260
Given TripleThis.java:

Compiling TripleThis.java gives this compiler warning:
Note: TripleThis.java uses unchecked or unsafe operations.
Which two replacements done together remove this compiler warning?

A. Replace line 9 with function<Integer> tripler = x-> - { return (Integer) X * 3 ; }.B. Replace line 12 with public static <T> void printValue (Function<T, T> f, T num ) {,C. Replace line 9 with function<Integer>, Integer> = X -> { return (integer) x * 3; }.D. Replace line 12 with public static int printValue function<Integer, Integer>, f, T num {.E. Replace line 12 with public static void printValue function<Integer> f, int num) {.

Answer: A,D


NEW QUESTION # 261
Given:

Which three are true? (Choose three.)

A. f2.foo(c) prints Hello world!B. f2.foo(c) prints Old Mundo!C. f1.foo(c) prints Bonjour le monde!D. f1.foo(c) prints Hello world!E. f1.foo(c) prints Old Mundo!F. b1.foo(c) prints Bonjour le monde!G. f2.foo(c) prints Bonjour le monde!H. b1.foo(c) prints Old Mundo!I. b1.foo(c) prints Hello world!

Answer: D,G,H


NEW QUESTION # 262
Given:
/code/a/Test.java
containing:

and
/code/b/Best.java
containing:
package b;
public class Best { }
Which is the valid way to generate bytecode for all classes?

A. java /code/a/Test.javaB. java /code/a/Test.java /code/b/Best.javaC. javac -d /code /code/a/TestD. javac -d /code /code/a/Test.java /code/b/Best.javaE. javac -d /code /code/a/Test.javaF. java -cp /code a.Test

Answer: D


NEW QUESTION # 263
Given:

Assume the file on path does not exist. What is the result?

A. ExceptionB. /u01/work/filestore.txt is deleted.C. The compilation fails.D. /u01/work/filestore.txt is not deleted.

Answer: C

Explanation:


NEW QUESTION # 264
......

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