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public boolean startsWith(String prefix, int toffset)

or

public boolean startsWith(String prefix)

public class Test {
    public static void main(String args[]) {
        String Str = new String("www.tutorialpro.org");

        System.out.print("Return Value :" );
        System.out.println(Str.startsWith("www") );

        System.out.print("Return Value :" );
        System.out.println(Str.startsWith("tutorialpro") );

        System.out.print("Return Value :" );
        System.out.println(Str.startsWith("tutorialpro", 4) );
    }
}

Return Value :true
Return Value :false
Return Value :true