Java 实现可比较接口的类
实现可比较接口的类
实例源码：
源代码：
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/**来自 2
NowJava.com - 时代Java**/3
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import java.util.Arrays;5
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public class Main {8
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public static void main(String[] args) {10
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Person[] persons = new Person[] {12
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new Person("A", "AA"),14
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new Person("B", "BB"),16
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new Person("C", "CC")};18
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System.out.println("Before sorting...");22
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print(persons);24
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// Sort the persons list28
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Arrays.sort(persons);30
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System.out.println("\nAfter sorting...");34
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print(persons);36
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}38
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public static void print(Person[] persons) {42
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for(Person person: persons){44
/**45
n o w j a v a . c o m - 时 代 Java46
**/47
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System.out.println(person);49
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}51
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}53
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}55
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class Person implements Comparable<Person> {58
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private String firstName;61
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private String lastName;63
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public Person(String firstName, String lastName) {66
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this.firstName = firstName;68
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this.lastName = lastName;70
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}72
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public String getFirstName() {75
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return firstName;77
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}79
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public void setFirstName(String firstName) {82
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this.firstName = firstName;84
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}86
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public String getLastName() {89
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return lastName;91
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}93
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public void setLastName(String lastName) {96
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this.lastName = lastName;98
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}100
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// Compares two persons based on their last names. If last names are103
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// the same, use first names105
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public int compareTo(Person anotherPerson) {107
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