1z0-808無料問題集「Oracle Java SE 8 Programmer I」

質問 1

Given:

What is the result?

（A）They really match
They really match

（B）They really match

（C）They match
They really match

（D）Nothing Prints

（E）They match

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 2

Given:

What is the result?

（A）A ClassCastException is thrown only at line n2.

（B）CC

（C）AC

（D）A ClassCastException is thrown only at line n1.

（E）AB

正解：A 解答を投票する

質問 3

Given:

Which is true?

（A）Sum for 0 to 0 = 55

（B）Sum for 0 to 10 = 55

（C）Compilation fails due to error on line 7.

（D）An Exception is thrown at the runtime.

（E）Compilation fails due to error on line 6.

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 4

Given:

What is the result?

（A）Compilation fails at line n1

（B）0:20

（C）Compilation fails at line n2

（D）10:20

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 5

Given:

What is the result?

（A）An ArraylndexOutOfBoundsException is thrown at runtime.

（B）91 98
99 100 101 102 103

（C）Compilation rails.

（D）A NullPointerException is thrown at runtime.

（E）97 98
99 100 null null null

正解：E 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 6

Which statement is true about the switch statement?

（A）Its expression must evaluate to a single value.

（B）The break statement, at the end of each case block, is mandatory.

（C）Its case label literals can be changed at runtime.

（D）It must contain the default section.

正解：A 解答を投票する

質問 7

Given:

Which of the following is equivalent to the above code fragment?

（A）System.out.println(x>10?">":x<10?"<":"=");

（B）None of the above

（C）System.out.printLn(x>10?">,': "<":,'=");

（D）System.out.println(x>10? ">"?"<":"=");

（E）System.out.printLn(x>10?">"?,'<"?"=");

正解：A 解答を投票する

質問 8

Given:

And given the code fragment:

What is the result?

（A）Read Book

（B）Read E-Book

（C）Compilation fails at line n2.

（D）Compilation fails at line n3.

（E）Compilation fails at line n1.

正解：A 解答を投票する

質問 9

Given:

And given the commands:
javac Test.Java
Java Test Hello
What is the result?

（A）An exception is thrown at runtime

（B）Failure

（C）Success

（D）Compilation fails.

正解：B 解答を投票する

質問 10

Given:

What would be the output, if it is executed as a program?

（A）name =, pass =

（B）name = null, pass = null

（C）name = null pass = true

（D）Compile error.

（E）name = null, pass = false

正解：E 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 11

Given:

What is the result?

（A）x: 1 y: 2
3 y: 4

（B）x: 1 y: 2
0 y: 0

（C）x: 0 y: 0
3 y: 4

（D）x: 0 y: 0
0 y: 0

正解：B 解答を投票する

質問 12

Given:

What is the result?

（A）Integer sum is 30 float sum is 30.0

（B）float sum is 30.0 double sum is 30.0

（C）Integer sum is 30 double sum is 30.0

（D）double sum is 30.0 float sum is 30.0

正解：B 解答を投票する

質問 13

Given the code fragment:

What is the result?

（A）It results in a compile time error at line 18.

（B）It results in a compile time error at lines at lines 12 and 15.

（C）It results in a compile time error at line 9.

（D）It prints : 1

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 14

Given the code fragment:

What is the result?

（A）Compilation fails only at line n1

（B）Compilation fails only at line n2

（C）Compilation fails at both line n1 and line n2

（D）Jesse 25
Walter 52

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 15

Given the code fragment from three files:

Which code fragment, when inserted at line 2, enables the code to compile?

（A）Option E

（B）Option D

（C）Option B

（D）Option C

（E）Option A

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 16

Given:
public class Natural {
private int i;
void disp() {
while (i <= 5) {
for (int i = 1; i <= 5; ) {
System.out.print(i + " ");
i++;
}
i++;
}
}
public static void main (String args[]) {
new Natural().disp();
}
}

（A）Prints 1 2 3 4 5 once

（B）Prints 1 2 3 4 5 six times

（C）Prints 1 3 5 once

（D）Compilation fails

（E）Prints 1 2 3 4 5 five times

正解：B 解答を投票する

質問 17

Which three statements are benefits of encapsulation?

（A）permits classes to be combined into the same package

（B）allows a class implementation to change without changing t he clients

（C）prevents code from causing exceptions

（D）enables multiple instances of the same class to be created safely

（E）protects confidential data from leaking out of the objects

（F）enables the class implementation to protect its invariants

正解：B、E、F 解答を投票する

1z0-808 無料問題集「Oracle Java SE 8 Programmer I」

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