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下面是一个Java SpareTire类的实例:
public class SpareTire { private int diameter; private String brand; public SpareTire(int diameter, String brand) { this.diameter = diameter; this.brand = brand; } public int getDiameter() { return diameter; } public void setDiameter(int diameter) { this.diameter = diameter; } public String getBrand() { return brand; } public void setBrand(String brand) { this.brand = brand; } public void inflate() { System.out.println("Inflating spare tire"); } public void changeBrand(String newBrand) { System.out.println("Changing spare tire brand from " + brand + " to " + newBrand); this.brand = newBrand; } public static void main(String[] args) { // 创建一个SpareTire对象 SpareTire spareTire = new SpareTire(16, "Goodyear"); // 调用对象的方法 System.out.println("Spare tire diameter: " + spareTire.getDiameter()); System.out.println("Spare tire brand: " + spareTire.getBrand()); spareTire.inflate(); spareTire.changeBrand("Michelin"); System.out.println("New spare tire brand: " + spareTire.getBrand()); } }
这个SpareTire类表示一个备用轮胎,它有一个直径和品牌属性,以及一些操作这些属性的方法。在main方法中,我们创建一个SpareTire对象,并调用它的方法来获取和修改属性,并执行一些其他操作。最后,我们打印出修改后的属性值。