Enumeration Java Example In this tutorial we will discuss about Java Enumeration. The Java programming language contains the enum keyword, which represents a special data type that enables for a variable to belong to a set of predefined constants. The variable must be equal to one of the values...
在Java 8中,我们可以使用Lambda表达式和Stream API来简化遍历Enumeration的操作。下面是一个示例代码: importjava.util.Enumeration;importjava.util.Vector;publicclassEnumerationExample{publicstaticvoidmain(String[]args){Vector<String>vector=newVector<>();vector.add("Apple");vector.add("Banana");vector.add("...
Sample Java code to demonstrate Iterator and Enumeration classEnumerationExample{publicstaticvoidmain(Stringargs[]){Listlist=newArrayList(Arrays.asList(newString[]{"Apple","Cat","Dog","Rat"}));Vectorv=newVector(list);delete(v,"Dog");}privatestaticvoiddelete(Vectorv,Stringname){Enumeratione=v.e...
We use the enum keyword to define an enumeration in Java. It is a good programming practice to name the constants with uppercase letters. Simple exampleWe have a simple code example with an enumeration. Main.java enum Day { MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY } ...
Table 1. Example Java classes for enumeration set values Enumeration Set Value Java Class Fieldbibus » encodingEnumbase64EncodingEnumbase64bibus » runOptionEnumverticalElementsRunOptionEnumverticalElementsbibus » orderEnumascendingOrderEnumascending...
An enumeration isused in any programming language to define a constant set of values. For example, the days of the week can be defined as an enumeration and used anywhere in the program. ... In our example, we will define an enumeration called days, which will be used to store the day...
importjava.util.Vector;importjava.util.Enumeration;publicclassWpEnumerationExample{publicstaticvoidmain(String[]args){// 创建一个Vector并添加元素Vector<String>vector=newVector<>();vector.add("Java");vector.add("Python");vector.add("JavaScript");// 使用Enumeration获取元素Enumeration<String>enumeration...
Example 3: Printing enum's constant name and value using foreach loopHere, we are using Enum.GetValues(typeof(Days) which returns an array of all enum values and to get the name of enum, we are using Enum.GetName(typeof(Days), day). Here, Days is the enum name and day is the ...
For example, to print all elements of a Vector<E> v: for (Enumeration<E> e = v.elements(); e.hasMoreElements();) System.out.println(e.nextElement()); Methods are provided to enumerate through the elements of a vector, the keys of a hashtable, and the values in a hashtable. ...
for(id item in example) { NSLog(@"%@", item); } [pool drain]; return 0; } 好了,这里你的一个fastenumeration就实现了。其实NSNumeration已经实现了NSFastenumeration这个协议。所以假如有一个自己实现的容器,就可以为这个容器定义一个Numeration,它只要继承NSNumeration,就可以方便的实现fastenumeration。想想...