在这段代码中,我们首先声明了一个String类型的数组fruits,然后使用Arrays.asList()方法将数组fruits转换为List,最后将List赋值给list。这样就完成了List对象的初始化。 示例代码 下面是一个完整的示例代码,演示了如何声明和初始化一个List对象,并遍历List中的元素: importjava.util.*;publicclassMain{
List<String> list =Lists.newArrayList("a","b","c"); 1 这个和Arrays.asList一样简洁清晰。 参考 Double Brace Initialization How to initialize List object in Java?
在上述代码示例中,我们直接使用Arrays.asList方法来初始化具有初始元素的List对象listWithElements。 4. 使用流程图进行总结 下面是一个使用流程图表示初始化List的过程的示例: flowchart start --> initializeEmptyList initializeEmptyList --> initializeListWithElements initializeListWithElements --> end 结论 本文介...
We can create aListfrom an array. And thanks to array literals, we can initialize them in one line: List<String> list = Arrays.asList(new String[]{"foo", "bar"}); We can trust the varargs mechanism to handle the array creation. With that, we can write more concise and readable co...
BothArrays.asList()andCollections.addAll()provide a quick and convenient way to initialize an ArrayList with predefined elements. However, they have one major drawback: the resulting ArrayList is fixed-size. This means you cannot add or remove elements from it. If you need a dynamic ArrayList...
initialize a hashset with values:List<Character> list = Arrays.asList('a','e','i','o','u'); HashSet<Character> set = new HashSet<>(list);or you can use Collections.addAll(), or you can initialize a set and add items one by one. ...
1.1. UseArrays.asList()to InitializeArrayListfromArray Toinitialize an ArrayList in a single line statement, get all elements from an array usingArrays.asListmethod and pass the array argument toArrayListconstructor. ArrayList<String>names=newArrayList<>(Arrays.asList("alex","brian","charles")); ...
jsp:useBean is a standard element that creates an object containing a collection of locales and initializes an identifier that points to that object. JSP expression language expressions (${ }) retrieve the value of object properties. The values are used to set custom tag attribute values and ...
For example, a plug-in may initialize the context information in one call and use that information in a subsequent call. The source plug-in context requires one array; the format plug-in context requires another array. For most plug-ins, 64 bytes should be sufficient. Some user-defined ...
protected void initializeDesktopProperties() initializeDesktopProperties boolean isAlwaysOnTopSupported() 返回此工具包是否支持 always-on-top 模式。 boolean isDynamicLayoutActive() 返回当前是否激活了调整大小时的动态布局(以编程方式设置,并受底层操作系统和/或窗口管理器支持)。 protected boolean isDynamicLa...