Comparable接口的compareTo方法的升序或降序取决于实现该接口的类的具体实现。按照惯例,compareTo方法应该返回负数、零或正数来指示当前对象是小于、等于还是大于传入的对象。具体来说: 如果this对象小于传入的对象,则compareTo应该返回负数。 如果this对象等于传入的对象,则compareTo应该返回零。 如果this对象大于传入的对象...
publicclassPersonimplementsComparable<Person>{privateStringname;privateintage;// 构造函数、getter 和 setter 方法省略@OverridepublicintcompareTo(Personother){// 按照年龄升序排序returnthis.age-other.age;}} 在这个示例中,compareTo方法返回的结果是根据年龄比较的,如果调用person1.compareTo(person2),返回的结果...
Comparator接口位于java.util包下,而Comparable接口位于kava.lang包下。 对于Comparator接口,可以看到它的compare()方法的参数时两个对象,比如我们对Cat类进行比较,那么这里就是两个要比较的Cat类的对象,所以可以有一个单独的类实现Comparator。 对于Comparable接口,它的方法只有一个对象作为参数,所以要比较的类需要实现Com...
3),生成 get set方法:// Shift + Alt + S --> R + Table + Enter + Shift +Table -->Enter /*** 商品po类*/publicclassItemsimplementsjava.lang.Comparable<Items>{privateString title;privateinthits;privateDate pubTime;publicItems() {}publicItems(String title,inthits, Date pubTime) {super()...
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IComparable.CompareTo(Object) Method Reference Feedback Definition Namespace: Java.Lang Assembly: Mono.Android.dll Compares this object with the specified object for order. C# Kopiëren [Android.Runtime.Register("compareTo", "(Ljava/lang/Object;)I", "GetCompareTo_Ljava_lang_Object_...
public int compareTo(Object o) { Student s=(Student)o; return num>s.num ? 1 : (num==s.num ? 0 : -1); return result; } 这段代码应该不要这一句了吧 ：return result; public int compareTo(Object o)方法是Comparable接口的方法，Student类必须重写这个方法 Arrays.sort((Object[]...
CompareTo(Object) Method Reference Feedback Definition Namespace: Java.Math Assembly: Mono.Android.dll C# 复制 int IComparable.CompareTo (Java.Lang.Object o); Parameters o Object Returns Int32 Implements CompareTo(Object) Remarks Portions of this page are modifications based on work ...
The final clone method in Enum ensures that enum constants can never be cloned.翻译如下：Enum里面...
IComparable.CompareTo(Object) Method Reference Feedback Definition Namespace: Java.Lang Assembly: Mono.Android.dll Compares this object with the specified object for order. C# Copy [Android.Runtime.Register("compareTo", "(Ljava/lang/Object;)I", "GetCompareTo_Ljava_lang_Object_Handler:...