题目内容
大多数电子邮箱提供商用"曲别针"表示收到的电子邮件中包含________。
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已知有如下代码//Animal.javapublic class Animal{public Animal(){System.out.println("Animal");}public void display(){System.out.println("Animal world");}}//Tiger.javapublic class Tiger extends Animal{public void display(){System.out.println("Tiger world");}}//Test.javapublic class Test{public static void main(String... args){Tiger tiger = new Tiger();tiger.display();}}测试Test，运行结果是？
已知有如下代码//Animal.javapublic class Animal{public Animal(){System.out.println("Animal");}public void display(){System.out.println("Animal world");}}//Tiger.javapublic class Tiger extends Animal{public Tiger(){System.out.println("Tiger");}public void display(){System.out.println("Tiger world");}}//Test.javapublic class Test{public static void main(String... args){Tiger tiger = new Tiger();tiger.display();}}下列说法正确的是？
已知有如下代码//Animal.javapublic class Animal{public Animal(){System.out.println("Animal");}public void display(){System.out.println("Animal world");}}//Tiger.javapublic class Tiger extends Animal{public Tiger(){super()；System.out.println("Tiger");}public void display(){System.out.println("Tiger world");}}//Test.javapublic class Test{public static void main(String... args){Tiger tiger = new Tiger();tiger.display();}}下列说法正确的是？
已知有如下代码//Animal.javapublic class Animal{private String type;public Animal(String type){System.out.println("Animal");this.type = type;}public void display(){System.out.println("Animal world");}}//Tiger.javapublic class Tiger extends Animal{public Tiger(){System.out.println("Tiger");}public void display(){System.out.println("Tiger world");}}//Test.javapublic class Test{public static void main(String... args){Tiger tiger = new Tiger();tiger.display();}}下列说法正确的是？
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