问题:
interface Animal {
void soundOff();
}
class Elephant implements Animal {
public void soundOff() {
System.out.println(“Trumpet”);
}
}
class Lion implements Animal {
public void soundOff() {
System.out.println(“Roar”);
}
}
class Alpha1 {
static Animal get( String choice ) {
if ( choice.equalsIgnoreCase( “meat eater” )) {
return new Lion();
} else {
return new Elephant();
}
}
}
Which compiles?()
A . new Animal().soundOff();
B . Elephant e = new Alpha1();
C . Lion 1 = Alpha.get(“meat eater”);
D . new Alpha1().get(“veggie”).soundOff();
interface Animal {
void soundOff();
}
class Elephant implements Animal {
public void soundOff() {
System.out.println(“Trumpet”);
}
}
class Lion implements Animal {
public void soundOff() {
System.out.println(“Roar”);
}
}
class Alpha1 {
static Animal get( String choice ) {
if ( choice.equalsIgnoreCase( “meat eater” )) {
return new Lion();
} else {
return new Elephant();
}
}
}
Which compiles?()
● 参考解析
本题暂无解析
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