第十二次作业

package 第十二次;

public abstract class Person {
    private String name;
    private int age;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }
    public Person() {
        super();
    }
    @Override
    public String toString() {
        return "Person [name=" + name + ", age=" + age + "]";
    }
    public abstract String speak();
}
package 第十二次;

public class Student extends Person{
    private float score;
    
    public Student(String name, int age, float score) {
        super(name, age);
        this.setScore(score);
    }
    @Override
    public String speak() {
        return "学生说-->我的姓名:"+super.getName()+" "+super.getAge()+"岁 "+this.score+"分";
    }
    public float getScore() {
        return score;
    }
    public void setScore(float score) {
        this.score = score;
    }
}
package 第十二次;

public class Worker extends Person {
    private float salary;
    
    public Worker(String name, int age, float salary) {
        super(name, age);
        this.setSalary(salary);
    }
    @Override 
    public String speak() {
        return "工人说 -->我的姓名:"+super.getName()+" "+super.getAge()+"岁 "+this.salary+"元";
    }
    public float getSalary() {
        return salary;
    }
    public void setSalary(float salary) {
        this.salary = salary;
    }
}
package 第十二次;

public class DemoStudentWorker {

    public static void main(String[] args) {
        Person student=new Student("旺财",3, 90.5f);
        Person worker=new Worker("小强",1, 8125.5f);
        print(student.speak());
        print(worker.speak());
    }
    private static void print(String speak) {
        System.out.println(speak);
    }
}

public class Shulie {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int arr[] = new int[7];
        arr[0] = 1;        
        arr[1] = 1;        
        for (int i = 2; i < arr.length; i++) 
        {            
            arr[i] = arr[i - 1] + arr[i - 2];
            System.out.println(arr[i]);
        }
    }

}

public class Maopao {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int[] arr={23,234,3,1,19,21,231,88,90,11};
    
        for(int i=0;i<arr.length-1;i++) {
            for(int j=0;j<arr.length-1;j++) {
                if(arr[j]>arr[j+1]) {
                    int temp=arr[j];
                    arr[j]=arr[j+1];
                    arr[j+1]=temp;
                }
            }
        }
        System.out.println("排序后:");
        for(int num:arr) {
            System.out.println(num+" ");
        }
    }

}

原文地址:https://www.cnblogs.com/xyayy/p/7979158.html