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1、Java 作业12 级计科一班 张筱月3_11 编写程序，提示用户输入一个整数，判断它的奇偶性。import java.util.Scanner;public class Number public static void main(String args)int n;Scanner scanner =new Scanner(System.in);System.out.print(请输入一个整数：);n=scanner.nextInt();System.out.println(你输入的整数是+n);if(n%2=0)System.out.println(n+是一个偶数！);elseSystem
2、.out.println(n+是一个奇数！);3_12 编写程序，提示用户输入整数的个数，并输入整数，求这些整数的和与平均值。import java.util.Scanner;public class Sum public static void main(String args) int n;int m;int sum=0;double average;Scanner scanner=new Scanner(System.in);System.out.print(请输入需要输入整数的个数：);n=scanner.nextInt();System.out.print(请输入+n+个整数：);f
3、or(int i=1;i=0;i-)System.out.print(ai+t);System.out.println();Java 作业12 级计科一班 张筱月5-10 为学生创建一个类，包括学生的姓名、ID 和年级。然后创建 20 个学生对象，姓名为name1，name2 直到 name20.她们的 ID 和你南极都是随机指定。找出所有三年级的学生并输出她们的姓名和 ID。public class Student private String name;private int ID;private int grade;public Student()public String getNam
4、e() return name; public int getID() return ID;public int getGrade() return grade; public String setGetName(String name) return this.name=name; public void setID() ID=(int)(Math.random()*100); public void setGrade()grade=(int)(Math.random()*10);public static void main(String args)Studentstu=new Stude
5、nt20;for(int i=0;i=A&args0.charAt(i)=Z)count+;System.out.println(该字符串中有+count+个大写字母!);Java 作业12 级计科一班 张筱月5-10 为学生创建一个类，包括学生的姓名、ID 和年级。然后创建 20 个学生对象，姓名为name1，name2 直到 name20.她们的 ID 和你南极都是随机指定。找出所有三年级的学生并输出她们的姓名和 ID。public class Student private String name;private int ID;private int grade;public Stude
6、nt()public String getName() return name; public int getID() return ID;public int getGrade() return grade; public String setGetName(String name) return this.name=name; public void setID(int id) ID=id; public void setGrade(int grd) grade=grd; public static void main(String args)Studentstu=new Student2
7、0;for(int i=0;i20;i+)stui=new Student();stui.name=new String(name+(i+1);for(int j=0;j20;j+)int randm=()stuj.setGrade(randm);int id=stuj.setID(id);System.out.println(name+(j+1)+的年级是：+stuj.grade+,ID 是：+stuj.ID);System.out.println(三年级的学生有：);for(int k=0;k20;k+)if(stuk.grade=3)System.out.println(stuk.nam
8、e+,ID 是：+stuk.ID);Java 作业12 级计科一班 张筱月6-14 设计一个汽车类，属性有车轮个数和车重。卡车是汽车类的子类，增加属性有载重量。轿车是汽车的一个子类，增加属性车型和颜色。每个类定义相关属性输出的方法。class AutoMobilepublic int wheelNumber;public double weigh;public AutoMobile() public AutoMobile(int wheelNumber,double weigh)this.wheelNumber=wheelNumber; this.weigh=weigh;public int
9、getWheelNumber() return wheelNumber; public double getWeigh() return weigh; class Truck extends AutoMobileprivate double carryingCapacity;public Truck() public Truck(int wheelNumber,double weigh,double carryingCapacity) super( wheelNumber, weigh);this.carryingCapacity=carryingCapacity; public double
10、 getCarryingCapacity() return carryingCapacity; class Car extends AutoMobileprivate String shape;private String color;public Car() public Car(int wheelNumber,double weigh,String shape,String color)super(wheelNumber,weigh);this.shape=shape;this.color=color;public String getShape() return shape; publi
11、c String getColor() return color; public class TestCar public static void main(Stringargs)Truck truck=new Truck(4,100,20000);Car car=new Car(4,50,audi,red);System.out.println(卡车车轮个数为+truck.getWheelNumber()+,车重为+truck.getWeigh()+，载重量为 +truck.getCarryingCapacity();System.out.println(轿车车轮数为+car.getWhee
12、lNumber()+,车重为+car.getWeigh()+，车型为+car.getShape()+，颜色为+car.getColor();Java 作业12 级计科一班 张筱月Java 作业12 级计科一班 张筱月6-14 设计一个汽车类，属性有车轮个数和车重。卡车是汽车类的子类，增加属性有载重量。轿车是汽车的一个子类，增加属性车型和颜色。每个类定义相关属性输出的方法。class AutoMobilepublic int wheelNumber;public double weigh;public AutoMobile()public AutoMobile(int wheelNumber,d
13、ouble weigh)this.wheelNumber=wheelNumber;this.weigh=weigh;public int getWheelNumber()return wheelNumber;public double getWeigh()return weigh;public void print() System.out.println(车轮子个数是：+wheelNumber+车重是：+weigh);class Truck extends AutoMobileprivate double carryingCapacity;public Truck()public Truck
14、(int wheelNumber,double weigh,double carryingCapacity)super( wheelNumber, weigh);this.carryingCapacity=carryingCapacity;public double getCarryingCapacity()return carryingCapacity;public void print()super.print();System.out.println(载重是：+carryingCapacity);Java 作业12 级计科一班 张筱月class Car extends AutoMobil
15、eprivate String shape;private String color;public Car()public Car(int wheelNumber,double weigh,String shape,String color)super(wheelNumber,weigh);this.shape=shape;this.color=color;public String getShape()return shape;public String getColor()return color;public void print() super.print();System.out.println(外形是：+shape);System.out.println(颜色是：+color);public class TestCar public static void main(Stringargs)Truck truck=new Truck(4,100,20000);Car car=new Car(4,50,audi,red);System.out.println(卡车车轮个数为+truck.
