Oracle 1Z0-803日本語 問題集

質問 1：



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

質問 2：

String name = "Spot";
int age = 4;
String str ="My dog " + name + " is " + age;
System.out.println(str);
And
StringBuilder sb = new StringBuilder();

A. sb.insert("My dog ").append( name + " is " + age); System.out.println(sb);
B. sb.append("My dog ").append( name ).append(" is " ).append(age); System.out.println(sb);
C. sb.insert("My dog ").insert( name ).insert(" is " ).insert(age); System.out.println(sb);
D. sb.append("My dog " + name + " is " + age); System.out.println(sb);
正解：B,D

質問 3：
public class ForTest {
public static void main(String[] args) { int[] arrar = {1,2,3}; for ( foo ) { } } }

A. ;;
B. int i = 0; i < 1; i++
C. int i: array
D. ; i < 1; i++
E. ; i < 1;
正解：A,B,C

質問 4：

Class A { }
Class B { }
Interface X { } Interface Y { }

A. Class C extends B implements X, Y { }
B. Class C implements Y extends B { }
C. Class C implements X, Y extends B { }
D. Class C extends A implements X { }
E. Class C extends A, B { }
正解：A,D

質問 5：



A. 2 2
B. 1 2
C. 3
D. 3 2
正解：A

質問 6：

class Cake { int model; String flavor; Cake() { model = 0; flavor = "Unknown"; }
} public class Test {
public static void main(String[] args) {
Cake c = new Cake();
bake1(c);
System.out.println(c.model + " " + c.flavor);
bake2(c);
System.out.println(c.model + " " + c.flavor);
}
public static Cake bake1(Cake c) {
c.flavor = "Strawberry";
c.model = 1200;
return c;
}
public static void bake2(Cake c) {
c.flavor = "Chocolate";
c.model = 1230;
return;
} }

A. 1200 Strawberry 1200 Strawberry
B. Compilation fails
C. 0 unknown 0 unknown
D. 1200 Strawberry 1230 Chocolate
正解：D