ผลต่างระหว่างรุ่นของ "Java-examples"
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Jittat (คุย | มีส่วนร่วม) (หน้าที่ถูกสร้างด้วย '=== Phone.java === <pre> public class Phone { private double credit; Phone(double inCredit) { credit = inCredit; } public double g…') |
Jittat (คุย | มีส่วนร่วม) |
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แถว 1: | แถว 1: | ||
=== Phone.java === | === Phone.java === | ||
− | < | + | <geshi lang="java"> |
public class Phone { | public class Phone { | ||
private double credit; | private double credit; | ||
แถว 17: | แถว 17: | ||
} | } | ||
} | } | ||
− | </ | + | </geshi> |
=== PrepaidPhone.java === | === PrepaidPhone.java === |
รุ่นแก้ไขเมื่อ 03:38, 29 เมษายน 2553
Phone.java
<geshi lang="java"> public class Phone { private double credit; Phone(double inCredit) { credit = inCredit; } public double getCredit() { return credit; } public void setCredit(double credit) { this.credit = credit; } public void call(double minute) { credit -= callCost(minute); } protected double callCost(double minute) { return 0; } } </geshi>
PrepaidPhone.java
public class PrepaidPhone extends Phone { PrepaidPhone(double inCredit) { super(inCredit); } protected double callCost(double minute) { if(minute <= 1) return 1; else return 1 + (minute - 1) * 0.5; } }
PostpaidPhone.java
public class PostpaidPhone extends Phone { PostpaidPhone(double inCredit) { super(inCredit); } public double callCost(double minute) { return minute * 0.25; } }