Oracle 1Z0-803日本語 問題集

質問 1：

public class ScopeTest {
int j, int k;
public static void main(String[] args) {
ew ScopeTest().doStuff(); }
void doStuff() {
nt x = 5;
oStuff2();
System.out.println("x");
}
void doStuff2() {
nt y = 7;
ystem.out.println("y");
or (int z = 0; z < 5; z++) {
ystem.out.println("z");
ystem.out.println("y");
}

A. z
B. x
C. k
D. j
E. y
正解：C,D

質問 2：

A. StringBuilder sb = StringBuilder.setCapacity (128);
B. StringBuilder sb = new String ("128");
C. StringBuilder sb = new StringBuilder (128);
D. StringBuilder sb = StringBuilder.getInstance (128);
正解：C

質問 3：
Given:

A. a, e o, o
B. a, e i, o
C. e, e o, o
D. e, e I, o
正解：A

質問 4：

A. Option E
B. Option A
C. Option C
D. Option D
E. Option B
F. Option F
正解：A,B

質問 5：

System.out.printIn("Result: " + 2 + 3 + 5); System.out.printIn("Result: " + 2 + 3 * 5);

A. Result: 10 Result: 30
B. Result: 10 Result: 25
C. Result: 215 Result: 215
D. Result: 235 Result: 215
E. Compilation fails
正解：D

質問 6：
Given:
class Mid {
public int findMid(int n1, int n2) {
return (n1 + n2) / 2;
}
}
public class Calc extends Mid {
public static void main(String[] args) {
int n1 = 22, n2 = 2;
// insert code here
System.out.print(n3);
}
}

A. int n3 = super.findMid(n1,n3);
B. Calc c = new Mid(); int n3 = c.findMid(n1, n2);
C. int n3 = Calc.findMid(n1, n2);
D. Calc c = new Calc(); int n3 = c.findMid(n1,n2);
E. Mid m1 = new Calc(); int n3 = m1.findMid(n1, n2);
正解：D,E