When dealing with Strings, which are of course immutable objects in Java, it may be easier to use a StringBuilder or StringBuffer implementation – as suggested by Geekforgeeks
StringBuffer vs StringBuilder
StringBuffer has a slight better performance than StringBuilder and is able to deal with multiple thread accessing. But is good to know it is there.
StringBuilder stringBuilderExample = new StringBuilder("Example"); stringBuilderExample.append("of String Builder"); StringBuffer stringBuffer = new StringBuffer("Example"); stringBuffer.append(" of String Buffer");
But factually, comparing both of them in a small benchmark, the performance is the same pretty much, but for a small benchmark, stringBuffer uses a little bit less memory.
real 0m0.048s <----------------------------- 0.048s (from 0.035s up to 0.055s) user 0m0.044s sys 0m0.009s
String JVM flags
There are some JVM flags that come in hand when dealing with strings as well:
Special thanks to Francesco Marchioni and his amazing blog, the very famous mastertheboss blog. I’m his fan and pretty much have his whole collection of books on my table, DataGrid, Quarkus, EAP, JBoss.