how to get the last match in a string builder in java

Question

i have a string builder like this

"abc efg abc hij abc klm"

i want to get the last abc from this string and also the data's following the last match. How to do this in java?

Answer 1

 StringBuilder text = new StringBuilder("abc efg abc hij abc klm");
 int index = text.lastIndexOf("abc");
 String substring = text.toString().substring(index);

Answer 2

As follows:

StringBuilder buffer = new StringBuilder();
buffer.append("abc efg abc hij abc klm");
int lastIndex = buffer.lastIndexOf("abc");
if (lastIndex >= 0) {
    System.out.println(buffer.substring(lastIndex));
}