最新の1Z0-815問題集で試験を準備する

Oracle 1Z0-815 試験概要:

Oracle 1Z0-815 試験シラバストピック:

Oracle Java SE 11 Programmer I 認定 1Z0-815 試験問題：

1. Given:

executed with this command:
java Main one two three
What is the result?

A) 0). one
B) 0). one
1). two
2). three
C) It creates an infinite loop printing:
0). one
1). two
1). two
...
D) A java.lang.NullPointerException is thrown.
E) The compilation fails.

2. Given:
class Overloading {
int x(double d) {
System.out.println("one");
return 0;
}
String x(double d) {
System.out.println("two");
return null;
}
double x(double d) {
System.out.println("three");
return 0.0;
}
public static void main(String[] args) {
new Overloading().x(4.0);
}
}
What is the result?

A) Compilation fails.
B) two
C) one
D) three

3. Which two commands are used to identify class and module dependencies? (Choose two.)

A) java Hello.java
B) jar --show-module-resolution
C) jmod describe
D) java --show-module-resolution
E) jdeps --list-deps

4. What is the result?
boolean log3 = ( 5.0 != 6.0) && ( 4 != 5);
boolean log4 = (4 != 4) || (4 == 4);
System.out.println("log3:"+ log3 + \nlog4" + log4);

A) log3:false
log4:true
B) log3:false
log4:false
C) log3:true
log4:false
D) log3:true
log4:true

5. What is the proper way to defined a method that take two int values and returns their sum as an int value?

A) int sum(int first, second) { return first + second; }
B) int sum(int first, int second) { first + second; }
C) int sum(int first, int second) { return first + second; }
D) void sum (int first, int second) { return first + second; }
E) sum(int first, int second) { return first + second; }

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