Java Data Type Tutorial - Java StringBuilder.insert(int index, char[] str, int offset, int len)

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Syntax

StringBuilder.insert(int index, char[] str, int offset, int len) has the following syntax.

public StringBuilder insert(int index,   char[] str,   int offset,   int len)

Example

In the following code shows how to use StringBuilder.insert(int index, char[] str, int offset, int len) method.

public class Main {
  public static void main(String args[]) {
    StringBuilder buffer = new StringBuilder();
//  ww  w.  j a v  a2 s  .c o m

    char charArray[] = { 'a', 'b', 'c', 'd', 'e', 'f' };
    buffer.insert(0, charArray, 3, 3);

    System.out.println(buffer.toString());
    
  }
}

The code above generates the following result.

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