There are two forms of String.startsWith() methods.

• startsWith(String prefix)  - Tests if this string starts with the specified prefix.
• boolean startsWith(String prefix, int toffset)  - Tests if the substring of this string beginning at the specified index starts with the specified prefix.

The startsWith()  method determines whether a given String begins with a specified string.

Java String.startsWith() Method Example

This is a complete example to demonstrate the usage of startsWith()  methods.

public class StartsWithExample {
    public static void main(String[] args) {
        String str = "javaguides";
        boolean startWith = str.startsWith("ja");
        System.out.println("startWith :: " +startWith);
         // Remember index starts from 0
        boolean startWithOffset = str.startsWith("guides", 4);
        System.out.println("startWithOffset :: " + startWithOffset);
    }
}

Output:

startWith:: true startWithOffset:: true 

Reference

https://www.javaguides.net/2018/08/java-string-class-api-guide.html

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