「java自定义练习题」java基础训练题
今天给各位分享java自定义练习题的知识，其中也会对java基础训练题进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在开始吧！
本文目录一览：
java练习题求完整代码
按照题目要求编写的用javaBean规范设计的学生类Student的Java程序如下
需要创建user.java.test包,把Student.java文件和Test.java文件放入包中,编译Student.java文件并且编译运行Test.java文件得到运行结果
Student.java文件代码如下
package user.java.test;
import java.io.Serializable;
public class Student implements Serializable{
private static final long serialVersionUID = 1L;
private String no;
private String name;
private double score;
public Student(){}
public Student(String no,String name,double score){
this.no=no;
this.name=name;
this.score=score;
}
public String getNo(){ return no;}
public void setNo(String no){ this.no=no;}
public String getName(){ return name;}
public void setName(String name){ this.name=name;}
public double getScore(){ return score;}
public void setScore(double score){ this.score=score;}
public String toString(){
return "学号:"+no+",姓名:"+name+",成绩:"+score;
}
public static double getAvg(Student[] sArray){
double sum=0,avg;
for(int i=0;isArray.length;i++){
sum=sum+sArray[i].getScore();
}
avg=sum/sArray.length;
return avg;
}
}
Test.java文件代码如下
package user.java.test;
public class Test{
public static void main(String[] args){
Student[] sArray=new Student[5];
sArray[0]=new Student("001","张三",89.5);
sArray[1]=new Student("002","李四",82.5);
sArray[2]=new Student("003","王五",93);
sArray[3]=new Student("004","赵六",73.5);
sArray[4]=new Student("005","孙七",66);
System.out.println("这些学生的平均分:"+Student.getAvg(sArray));
for(int i=0;isArray.length;i++){
System.out.println(sArray[i].toString());
}
}
}
java练习题
public class Vehicle {
private String name;
private String gender;
private int age;
private String driverLicense;
private String plateNumber;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getDriverLicense() {
return driverLicense;
}
public void setDriverLicense(String driverLicense) {
this.driverLicense = driverLicense;
}
public String getPlateNumber() {
return plateNumber;
}
public void setPlateNumber(String plateNumber) {
this.plateNumber = plateNumber;
}
@Override
public String toString() {
return "Vehicle [name=" + name + ", gender=" + gender + ", age=" + age + ", driverLicense=" + driverLicense
+ ", plateNumber=" + plateNumber + "]";
}
public void drive() {
System.out.println(name + "司机正在开" + plateNumber + "牌号的车。");
}
public void stop() {
System.out.println(name + "司机把" + plateNumber + "牌号的车停了下来。");
}
public boolean checkName(String check) {
if (this.name != null this.name != "") {
return this.name.equals(check);
}
return false;
}
public boolean checkPlateNumber(String check) {
if (this.plateNumber != null this.plateNumber != "") {
return this.plateNumber.equals(check);
}
return false;
}
}
懒得写注释了
java练习：自定义一个求最大值的类？
public int maxNum(int num1, int num2, int num3) {
int max = 0;
int temp1 = num1 num2 ? num1 : num2;
max = temp1 num3 ? temp1 : num3;
return max;
}
public double maxNum(double num1, double num2, double num3) {
double max = 0;
double temp1 = num1 num2 ? num1 : num2;
max = temp1 num3 ? temp1 : num3;
return max;
}
public BigDecimal maxNum(BigDecimal num1, BigDecimal num2, BigDecimal num3) {
BigDecimal max = new BigDecimal(0);
BigDecimal temp1 = num1.compareTo(num2) -1 ? num1 : num2;
max = temp1.compareTo(num3) -1 ? temp1 : num3;
return max;
}
希望对你有帮助，望采纳
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发布于：2022-12-05，除非注明，否则均为原创文章，转载请注明出处。