16、”下列程序执行后的结果是______。 class Animal{ public Animal(){ System.out.print( ); } public Animal( ){ this(); System.out.print( ); } } class Dog extends Animal{ public Dog(){ super( ); System.out.print( ); } } public class Test{ public static void main( ) { Animal animal=new Dog(); } }
1、给出下面程序段: if(x>0){System.out.println("Hello.");} else if(x>-3){System.out.println("Nice to meet you!");} else{System.out.println("How are you?");} 若打印字符串"How are you?",则x 的取值范围是( )。
16、”下列程序执行后的结果是______。 class Animal{ public Animal(){ System.out.print( ); } public Animal( ){ this(); System.out.print( ); } } class Dog extends Animal{ public Dog(){ super( ); System.out.print( ); } } public class Test{ public static void main( ) { Animal animal=new Dog(); } }
1、给出下面程序段: if(x>0){System.out.println("Hello.");} else if(x>-3){System.out.println("Nice to meet you!");} else{System.out.println("How are you?");} 若打印字符串"How are you?",则x 的取值范围是( )。