set frist letter of stiring to upper case and rest to lower case java code example
Example 1: java method to capitalize first letter
String str = "java";
String cap = str.substring(0, 1).toUpperCase() + str.substring(1);
// cap = "Java"
Example 2: 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!