java split string at capital letters code example

Example 1: capitalize string java

String str = "hello world!";

// capitalize first letter
String output = str.substring(0, 1).toUpperCase() + str.substring(1);

// print the string
System.out.println(output);
// Hello world!

Example 2: kotlin split by uppercase

String s = "thisIsMyString";
String[] r = s.split("(?=\\p{Upper})");