Java startsWith Method Guide

In Java, the startsWith method is used to check if a string starts with a specified prefix. This method takes a string as a parameter, and it returns true if the string calling the method starts with the parameter string, otherwise it returns false. The startsWith method is case-sensitive, so if case-insensitive comparison is needed, you can use the toLowerCase() or toUpperCase() methods for conversion before comparison. Example code is shown below:

String str = "Hello, world!";
System.out.println(str.startsWith("Hello")); // true
System.out.println(str.startsWith("hello")); // false