Java类类getComponentType()方法与示例
類(lèi)類(lèi)getComponentType()方法 (Class class getComponentType() method)
getComponentType() method is available in java.lang package.
getComponentType()方法在java.lang包中可用。
getComponentType() method is used to returns the Class denoting the component type of an array.
getComponentType()方法用于返回表示數(shù)組的組件類(lèi)型的Class。
getComponentType() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
getComponentType()方法是一個(gè)非靜態(tài)方法,只能通過(guò)類(lèi)對(duì)象訪(fǎng)問(wèn),如果嘗試使用類(lèi)名稱(chēng)訪(fǎng)問(wèn)該方法,則會(huì)收到錯(cuò)誤消息。
getComponentType() method does not throw an exception at the time of returning Class.
返回Class時(shí), getComponentType()方法不會(huì)引發(fā)異常。
Syntax:
句法:
public Class getComponentType();Parameter(s):
參數(shù):
It does not accept any parameter.
它不接受任何參數(shù)。
Return value:
返回值:
The return type of this method is Class, it returns the component type in terms of "Class" type.
該方法的返回類(lèi)型為Class ,它以“ Class”類(lèi)型的形式返回組件類(lèi)型。
Example:
例:
// Java program to demonstrate the example // of Class getComponentType() method of Classpublic class GetComponentTypeOfClass {public static void main(String[] args) {// Creating an array of Integer typeInteger[] num = new Integer[] {10,20,30};// It returnd the Class denoting the component typeClass cl = num.getClass();// By using getComponentType() method is used to// get the component of the given ClassClass comp_type = cl.getComponentType();// If any component existsif (comp_type != null)System.out.println("Component Type: " + comp_type);elseSystem.out.println("No Component Type Associated");} }Output
輸出量
Component Type: class java.lang.Integer翻譯自: https://www.includehelp.com/java/class-class-getcomponenttype-method-with-example.aspx
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