题目内容
阅读下面JAVA代码片段,正确的选项是( )public class Car { String color; String motor;public Car(String color, String motor) {// 1 this.color =color; this.motor =motor;}}public class Truck extends Car {double weight;public Truck() {// 2}public Truck(String color，String motor, double weight){ // 3 super(color, motor);this.weight = weight;}public void display(){System.out.println("颜色:"+color+"\t发动机型号:"+motor+"\t载重量:"+weight);}public static void main(String[] args) {Truck truck = new Truck("红色","玉柴", 1.5); // 4 truck.display();}}
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