1Z1-803 無料問題集「Oracle Java SE 7 Programmer I」
Given:
public class Test { public static void main(String[] args) { int day = 1; switch (day) { case "7": System.out.print("Uranus"); case "6": System.out.print("Saturn"); case "1": System.out.print("Mercury"); case "2": System.out.print("Venus"); case "3": System.out.print("Earth"); case "4": System.out.print("Mars"); case "5": System.out.print("Jupiter"); }
} }
Which two modifications, made independently, enable the code to compile and run?
public class Test { public static void main(String[] args) { int day = 1; switch (day) { case "7": System.out.print("Uranus"); case "6": System.out.print("Saturn"); case "1": System.out.print("Mercury"); case "2": System.out.print("Venus"); case "3": System.out.print("Earth"); case "4": System.out.print("Mars"); case "5": System.out.print("Jupiter"); }
} }
Which two modifications, made independently, enable the code to compile and run?
正解：A、D
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解説: (JPNTest メンバーにのみ表示されます)
Given: Given:
public class SuperTest {
public static void main(String[] args) { statement1 statement2 statement3
}
}
class Shape {
public Shape() {
System.out.println("Shape: constructor");
}
public void foo() {
System.out.println("Shape: foo");
}
}
class Square extends Shape {
public Square() {
super();
}
public Square(String label) {
System.out.println("Square: constructor");
}
public void foo() {
super.foo();
}
public void foo(String label) {
System.out.println("Square: foo");
}
}
}
}
What should statement1, statement2, and statement3, be respectively, in order to produce the result?
Shape: constructor
Square: foo
Shape: foo
public class SuperTest {
public static void main(String[] args) { statement1 statement2 statement3
}
}
class Shape {
public Shape() {
System.out.println("Shape: constructor");
}
public void foo() {
System.out.println("Shape: foo");
}
}
class Square extends Shape {
public Square() {
super();
}
public Square(String label) {
System.out.println("Square: constructor");
}
public void foo() {
super.foo();
}
public void foo(String label) {
System.out.println("Square: foo");
}
}
}
}
What should statement1, statement2, and statement3, be respectively, in order to produce the result?
Shape: constructor
Square: foo
Shape: foo
正解：C
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