咋弄znaonfvghko

定义一个植物类，有3个属性：高度，颜色，重量。请将属性定义为私有的，并生成get和set方法。

  • 定义一个树类，继承自植物类。它有属性：树干、树叶。请创建一个5个参数的构造方法，
  • 实例化3棵树。并输出这3课树的信息。

3.3）找到这3棵树中最高的树并输出。
植物类属性定义正确、get和set方法正确
树类定义正确、继承语法正确。树类属性定义正确
树类的构造方法定义正确
实例化树对象正确输出树信息
正确输出最高的树

  • */

代码如下，希望对您有所帮助，采纳一下吧

public class Plant {
    //定义高度、颜色、重量
    private double height;
    private String color;
    private double weight;

    //无参构造方法
    public Plant() {

    }

    //有参构造方法
    public Plant(double height, String color, double weight) {
        this.height = height;
        this.color = color;
        this.weight = weight;
    }

    public double getHeight() {
        return height;
    }

    public void setHeight(double height) {
        this.height = height;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public double getWeight() {
        return weight;
    }

    public void setWeight(double weight) {
        this.weight = weight;
    }
}

public class Tree extends Plant{
    //定义树干、树叶属性
    private String treeTrunk;
    private String leaf;

    //定义构造方法
    public Tree(double height, String color, double weight, String treeTrunk, String leaf) {
        super(height, color, weight);
        this.treeTrunk = treeTrunk;
        this.leaf = leaf;
    }

    public String getTreeTrunk() {
        return treeTrunk;
    }

    public void setTreeTrunk(String treeTrunk) {
        this.treeTrunk = treeTrunk;
    }

    public String getLeaf() {
        return leaf;
    }

    public void setLeaf(String leaf) {
        this.leaf = leaf;
    }

    //定义输出树信息的方法
    public void outputTreeInfo() {
        System.out.println("树高：" + this.getHeight() + "颜色：" +
                this.getColor() + "重量：" + this.getWeight() +
                "树干：" + this.treeTrunk + "树叶：" + this.leaf);
    }

}

//测试类
public class Test {
    public static void main(String[] args) {
        //定义三棵树对象
        Tree tree1 = new Tree(20.0, "黄色", 100, "黄色树干", "黄色树叶");
        Tree tree2 = new Tree(40.0, "白色", 100, "白色树干", "白色树叶");
        Tree tree3 = new Tree(25.1, "绿色", 100, "绿色树干", "绿色树叶");

        //输出三棵树的信息
        tree1.outputTreeInfo();
        tree2.outputTreeInfo();
        tree3.outputTreeInfo();

        //比较三棵树的高度
        double height = tree1.getHeight();
        String tree = "tree1";
        if (height < tree2.getHeight()) {
            height = tree2.getHeight();
            tree = "tree2";
        }
        if (height < tree3.getHeight()) {
            height = tree3.getHeight();
            tree = "tree3";
        }
        //输出最高树的信息
        System.out.println("最高的树：");
        if ("tree1".equals(tree)) {
            tree1.outputTreeInfo();
        }
        if ("tree2".equals(tree)) {
            tree2.outputTreeInfo();
        }
        if ("tree3".equals(tree)) {
            tree3.outputTreeInfo();
        }
    }
}

运行结果如下

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