For dynamic Strings, use StringBuffer instead of strings

String in Java is a constant object, which means that, by default, it can be created and read but not modified. Developers sometimes use this String extensively, forgetting the overhead it may cause for the application. Every time you concatenate two string objects, JVM creates a new String Object for them and frees the previous ones. For an example of this, consider the following function:

 public class stringClass {  public String getTabSeparatedData(String[] data) {    String newData =

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