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35 lines
740 B
35 lines
740 B
class Vehicle {
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public void run() {
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}
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}
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class Car extends Vehicle{
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@Override
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public void run(){
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System.out.println("汽车启动了~");
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}
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}
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class Bicycle extends Vehicle{
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@Override
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public void run(){
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System.out.println("自行车启动了~");
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}
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}
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class Truck extends Vehicle{
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@Override
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public void run(){
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System.out.println("卡车启动了~");
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}
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}
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public class Main {
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static void main(String[] args) {
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Vehicle[] vehicles = new Vehicle[3];
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vehicles[0] = new Car();
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vehicles[1] = new Bicycle();
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vehicles[2] = new Truck();
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for (int i = 0; i < 3; i++) {
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Vehicle v = vehicles[i];
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v.run();
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}
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}
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}
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