首页 > 电脑 > java求解答

java求解答

电脑 2022-08-06

Java问题，求大神解答

Map data=new HashMap<>(); data.put (LocalDate.parse ("2017-01-01"),0.2); data.put (LocalDate.parse ("2017-01-02"),0.5); data.put (LocalDate.parse ("2016-01-02"),0.5); data.put (LocalDate.parse ("2019-07-04"),0.2); data.put (LocalDate.parse ("2019-07-05"),0.2); data.put (LocalDate.

java问题，求解答

package b; import java.util.ArrayList; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.Set; public class LianXi2 { public static void main(String[] args) { ArrayList list = new ArrayList(); //使用ArrayList保存所有学生的信息，要求指明泛型类为Student，集合对象为list list.ad

Java题，求大佬解答

这个就是最简单的JAVA swing窗体啊，代码如下： import java.awt.BorderLayout; import java.awt.EventQueue; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; public class JFrameEx extends JFrame { private static final long serialVersionUID = -2085588912441845548L; private JPanel contentPane

java 问题求解答

代码如下，运行结果如图所示。

class Student{

String name;

int age;

String banJi;

String major;

String xueYuan;

public Student(String name,int age,String banJi,String major,String xueYuan){

this.name=name;

this.age=age;

this.banJi=banJi;

this.major=major;

this.xueYuan=xueYuan;

}

@Override

public String toString()

{

return "姓名:"+this.name+", 年龄:"+this.age+", 班级:"+

this.banJi+" ,专业:"+this.major+", 所属学院:"+this.xueYuan;

}

public void Printiofo(){

System.out.println(this.toString());

}

}

public class Practice

{

public static void main(String args[]){

Student student=new Student("张三",19,"2019级2班","网络工程","网络与通信学院");

student.Printiofo();

}

}

java问题求大神解答

package b; import java.util.ArrayList; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.Set; public class LianXi2 { public static void main(String[] args) { ArrayList list = new ArrayList(); //使用ArrayList保存所有学生的信息，要求指明泛型类为Student，集合对象为list list.add(new Stu

标签：信息技术 Java编程 Java 编程

一个手机号码可以验证几个优酷账号？返回列表

大明白知识网 Copyright © 2020-2022 www.wangpan131.com. Some Rights Reserved. 京ICP备11019930号-18