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+" "); } } }