/**Toss coin test that allow the you guess the upside as many times as you wish. When exit, the system would give you a list of information about your guesses.*/
import java.io.*;
public class TossCoin {
public static void main(String[]args)
{
String input=null;
long seed=System.currentTimeMill
- tossCoin
我要留言To Comment 阅读全文Read All | 回复Comments() 点击Count()
- 接口类继承问题
接口类只可以继承接口类的,例如Student是一个类,而“public interface CollegeStudentInterface extends Student”就是错误的。如果要写一个CollegeStudent的接口只能先把Student接口化,然后将CollegeStudentInterface继承它。
/**An interface for a class of students.*/
public interface StudentInterface
{
/**
我要留言To Comment 阅读全文Read All | 回复Comments() 点击Count()
- GenericCoin
·实验说明:模拟一个银币,此银币有两个面。方法为‘抛银币’,银币顶面、底面随机向上。抛两银币各50次,并显示两银币顶面向上次数和哪个银币顶面次数较多。
·代码:
import java.util.*;
public class GenericCoin {
private int front;
private int back;
GenericCoin(){
front=1;
back=0;
}//end constructor
我要留言To Comment 阅读全文Read All | 回复Comments() 点击Count()
- Person
/** a person with name and age*/
public class Person {
private Name name;
private int age;
public Person(){
name=null;
age=0;
}//end default constructor
public Person(Name personName,int personAg
我要留言To Comment 阅读全文Read All | 回复Comments() 点击Count()
- Student
·实验说明:创建了Student类,数据域中声明了类型为一个先前创建的Name类的私有变量。main方法中使用两种创建Student对象的方法。
·代码
public class Student {
private Name fullName;
private String id;//学号
public Student(){
fullName=new Name();
id="";
我要留言To Comment 阅读全文Read All | 回复Comments() 点击Count()
- Name
·实验说明:创建Name类,构造两个Name对象,并把第一个对象的第一姓名赋予第二个对象。打印相应结果。
·代码
public class Name {
private String first; //名
private String last; //姓
public Name(){
}//end default constructor
public Name(String firstName, String lastN
我要留言To Comment 阅读全文Read All | 回复Comments() 点击Count()
- Java.study.Counter
· 实验
·作用:计数器,实现每次加一或减一运算
·代码:
public class Counter {
//post:increase or decrease cnt by 1
private int cnt;
public Counter(){
cnt=0;
}//end default constructor
public void inc(){
++cnt;
}//end inc
public void dec(){