StringBuffer類insert(int offset，String s) (StringBuffer Class insert(int offset , String s))

• This method is available in package java.lang.StringBuffer.insert(int offset, String s).

  軟件包java.lang.StringBuffer.insert(int offset，String s)中提供了此方法。

• This method is used to insert the string representation with the given object at the specified position.

  此方法用于在指定位置插入具有給定對象的字符串表示形式。

• This method is overridable so it is available in different-2 forms like:

  此方法是可重寫的，因此有兩種不同的形式可用，例如：

  • StringBuffer insert(int offset , boolean b)
  • StringBuffer insert(int offset , char c)
  • StringBuffer insert(int offset , char[] c) etc

Syntax:

句法：

StringBuffer insert(int offset , String s){}

Parameter(s):

參數：

We can pass two or three objects according to our need as a parameter in the method and that object will insert in a sequence at the specified position.

我們可以根據需要傳遞兩個或三個對象作為方法中的參數，并且該對象將按順序插入到指定位置。

Return value:

返回值：

The return type of this method is StringBuffer that means this method returns a reference to this object.

該方法的返回類型為StringBuffer ，這意味著該方法返回對該對象的引用。

Java程序演示insert()方法的示例 (Java program to demonstrate example of insert() method)

import java.lang.StringBuffer;public class StringBufferClass {public static void main(String[] args) {StringBuffer sb = new StringBuffer("Java is a programming language : ");// use insert(int offset ,Boolean b) it will insert the Boolean parameter // at index 33 as string to the StringBuffersb.insert(33, true);// Display result after insertingSystem.out.println("The result will be after inserting Boolean object to the StringBuffer is :" + sb.toString());sb = new StringBuffer("Version of Java is : ");// use insert(int offset , int i) it will insert the Integer parameter // at index 21 as string to the StringBuffersb.insert(21, 8);// Display result after insertingSystem.out.println("The result will be after inserting Integer object to the StringBuffer is :" + sb.toString());} }

Output

輸出量

D:\Programs>javac StringBufferClass.javaD:\Programs>java StringBufferClass The result will be after inserting Boolean object to the StringBuffer is :Java is a programming language : true The result will be after inserting Integer object to the StringBuffer is :Version of Java is : 8

翻譯自: https://www.includehelp.com/java/stringbuffer-insert-int-offset-string-s-method-with-example.aspx

總結

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