Oracle 1Z0-803日本語 問題集

質問 1：

class Base {
public static void main(String[] args) {
System.out.println("Base " + args[2]);
}
}
public class Sub extends Base{
public static void main(String[] args) {
System.out.println("Overriden " + args[1]);
}
}

javac Sub.java
java Sub 10 20 30

A. Base 30 Overridden 20
B. Base 30
C. Overridden 20 Base 30
D. Overridden 20
正解：D

質問 2：
Give:


A. 8
B. 11
C. 1
D. 5
E. -1
正解：B

質問 3：



A. Option A
B. Option C
C. Option D
D. Option B
正解：C

質問 4：
Given:
public class Test { public static void main(String[] args) { int ax = 10, az = 30; int aw = 1, ay = 1; try { aw = ax % 2; ay = az / aw; } catch (ArithmeticException e1) { System.out.println("Invalid Divisor"); } catch (Exception e2) { aw = 1; System.out.println("Divisor Changed"); } ay = az /aw; // Line 14 System.out.println("Succesful Division " + ay);
}
}

A. Invalid Divisor Divisor Changed Successful Division 30
B. Invalid Divisor Exception in thread "main" java.lang.ArithmeticException: / by zero at test.Teagle.main(Teagle.java:14) Successful Division 1
C. Invalid Divisor Successful Division 30
D. Invalid Divisor Exception in thread "main" java.lang.ArithmeticException: / by zero at test.Teagle.main(Teagle.java:14)
正解：D

質問 5：

public class TestLoop {
public static void main(String[] args) {
int array[] = {0, 1, 2, 3, 4};
int key = 3;
for (int pos = 0; pos < array.length; ++pos) {
if (array[pos] == key) {
break;
}
}
System.out.print("Found " + key + "at " + pos);
} }

A. Option A
B. Option C
C. Option D
D. Option B
正解：B

質問 6：

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);
}
}

A. Option A
B. Option C
C. Option D
D. Option B
正解：C