矢量類insertElementAt()方法 (Vector Class insertElementAt() method)
insertElementAt() method is available in java.util package.
insertElementAt()方法在java.util包中可用。
insertElementAt() method is used to set the given element (ele) at the given (indices) in thid Vector.
insertElementAt()方法用于在Vector的給定(索引)處設置給定元素(ele)。
insertElementAt() 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.
insertElementAt()方法是一種非靜態方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。
insertElementAt() method may throw an exception at the time of the inserting element.
insertElementAt()方法在插入元素時可能會引發異常。
ArrayIndexOutOfBoundsException: This exception may throw when the given indices are not in a range.
ArrayIndexOutOfBoundsException ：如果給定索引不在范圍內，則可能引發此異常。
Syntax:
句法：
public void insertElementAt(Element ele, int indices);
Parameter(s):
參數：
Element ele – represents the element to be added.
元素ele –表示要添加的元素。
int indices – represents the position of inserted element.
int索引 –表示插入元素的位置。
Return value:
返回值：
The return type of the method is void, it returns nothing.
該方法的返回類型為void ，不返回任何內容。
Example:
例：
// Java program to demonstrate the example
// of void insertElementAt(Element ele, int indices)
// method of Vector
import java.util.*;
public class InsertElementAtOfVector {
public static void main(String[] args) {
// Instantiates a Vector object with
// initial capacity of "10"
Vector < String > v = new Vector < String > (10);
// By using add() method is to add the
// elements in this v
v.add("C");
v.add("C++");
v.add("JAVA");
// Display Vector
System.out.println("v: " + v);
// By using insertElementAt("SFDC", 1) method is
// to insert the given object "SFDC" at the given
// indices "1"
v.insertElementAt("SFDC", 1);
// Display updated vector
System.out.println("v.insertElementAt(SFDC, 1): " + v);
}
}
Output
輸出量
v: [C, C++, JAVA]
v.insertElementAt(SFDC, 1): [C, SFDC, C++, JAVA]
翻譯自: https://www.includehelp.com/java/vector-insertelementat-method-with-example.aspx
