java作业代码 java代码详解
JAVA作业求助
做个练习,仅供参考。
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代码如下:
package com.hello.algorithm;
import java.util.Arrays;
import java.util.Scanner;
public class InsertSort {
public static void main(String[] args) {
// 创建一个数组存储成绩,需要指定长度
int[] scores = new int[6]; //假设存储6个成绩:100 99 85 82 63 60
int index = 0;
while(index scores.length) {
// 控制台接收成绩
System.out.print("请输入成绩(100 99 85 82 63 60):");
Scanner scanner = new Scanner(System.in); // 随机插入成绩
int s = scanner.nextInt();
// 将接收的成绩与数组中的所有成绩进行比较,按照从大到小的规则,找到插入位置,然后插入数组
int insertPos = 0;
int temp = 0;
int temp2 = 0;
// 第一遍遍历数组找到插入位置
for(int i = 0; i scores.length; i++){
if(s scores[i]){
insertPos = i;
temp = scores[i];
scores[i] = s;
break;
}
}
// 第二遍遍历从插入位置整体后移
for(int i = 0; i scores.length; i++){
// 插入位置后面的元素整体后移
if(i insertPos){
temp2 = scores[i];
scores[i] = temp;
temp = temp2;
}
}
// 打印该成绩的插入位置以及打印整个数组
System.out.println("插入成绩的下标:" + insertPos);
System.out.println(Arrays.toString(scores));
index++;
}
}
}
运行结果如下:
请输入成绩(100 99 85 82 63 60):63
插入成绩的下标:0
[63, 0, 0, 0, 0, 0]
请输入成绩(100 99 85 82 63 60):60
插入成绩的下标:1
[63, 60, 0, 0, 0, 0]
请输入成绩(100 99 85 82 63 60):82
插入成绩的下标:0
[82, 63, 60, 0, 0, 0]
请输入成绩(100 99 85 82 63 60):99
插入成绩的下标:0
[99, 82, 63, 60, 0, 0]
请输入成绩(100 99 85 82 63 60):85
插入成绩的下标:1
[99, 85, 82, 63, 60, 0]
请输入成绩(100 99 85 82 63 60):100
插入成绩的下标:0
[100, 99, 85, 82, 63, 60]
Process finished with exit code 0
Java的作业,新手不会做,求代码
class Person{
string name;
int age;
string address;
public String toString(){
return "姓名:"+name+" 家庭住址:"+address+" 年龄:"+age;
}
public Person(string name,int age,string address){
this.name = name;
this.age = age;
this.address = address;
}
}
class Employee extends Person{
int num;
public Employee(string a,int b,string c,int n){
name = a;
age = b;
address = c;
num = n;
}
}
class Student extends Person{
public Student(string a,int b,string c){
name = a;
age = b;
address = c;
}
}
public class
Java实验,代码怎么写?
Shape.java接口代码
public interface Shape {
public static final double PI = 3.14d;
public double area();
}
Circle.java圆类代码
public class Circle implements Shape {
private double radius;
public Circle(double radius) {
this.radius = radius;
}
@Override
public double area() {
return PI * this.radius * this.radius;
}
public double perimeter() {
return 2 * PI * this.radius;
}
}
Cylinder.java圆柱体类代码
public class Cylinder extends Circle {
private double height;
public Cylinder(double radius, double height) {
super(radius);
this.height = height;
}
public double area() {
return 2 * super.area() + super.perimeter() * this.height;
}
public double volume() {
return super.area() * this.height;
}
}
X5_3_6.java主类代码
public class X5_3_6 {
public static void main(String[] args) {
Circle cir1 = new Circle(5);
System.out.println("圆的面积为:" + cir1.area());
System.out.println("圆的周长为:" + cir1.perimeter());
Cylinder cy1 = new Cylinder(10, 15);
System.out.println("圆柱体的表面积为:" + cy1.area());
System.out.println("圆柱体的体积为:" + cy1.volume());
}
}
上面是我写的代码,下图是执行结果,麻烦看一下,是否可以。
java作业,利用接口实现多态
代码如下:
interface Shape {
float perimeter();
}
class Sequare implements Shape {
private float a;
public Sequare(float a) {
super();
this.a = a;
}
@Override
public float perimeter() {
return 4 * a;
}
}
class Rou implements Shape {
private float r;
public Rou(float r) {
this.r = r;
}
@Override
public float perimeter() {
return 2 * 3.14f * r;
}
}
public class MainClass {
public static float getPerimeter(Shape s) {
return s.perimeter();
}
public static void main(String[] args) {
Sequare s = new Sequare(20);
System.out.println("Square周长:" + getPerimeter(s));
Rou r = new Rou(15.5f);
System.out.println("Rou周长:" + getPerimeter(r));
}
}
运行结果:
文章题目:java作业代码 java代码详解
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