Java 25 (LTS) reference · String Methods

Java String startsWith() Method

Return true if the string begins with a prefix. endsWith() checks the end the same way.

Java 25 (LTS) Since Java 1.0

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Syntax

string.startsWith(prefix)

Parameters

Parameter	Description
`prefix` String	The text to check for.

Return value

true or false.

Examples

Prefixes and suffixes

public class Main {
    public static void main(String[] args) {
        String path = "/admin/users";
        System.out.println(path.startsWith("/admin"));
        System.out.println(path.endsWith(".json"));
    }
}

Output

true
false

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Filter by extension

public class Main {
    public static void main(String[] args) {
        String[] files = {"report.pdf", "photo.png", "notes.pdf"};
        for (String f : files) {
            if (f.endsWith(".pdf")) System.out.println(f);
        }
    }
}