This java tutorial shows how to use the startsWith() method of java.lang.String class. Let's see an example. Another option is to use String#regionMatches() method, which takes a boolean argument stating whether to do case-sensitive matching or not. Set dayNames = Calendar.getInstance() .getDisplayNames(Calendar.DAY_OF_WEEK, Calendar.SHORT, Locale.getDefault()) .keySet(); From there you can use .startsWith or .matches or whatever other method that others have mentioned above. Java String startsWith(String prefix, int offset) Method Example. Note: The startsWith() method is case sensitive. This method returns true if the string begins with the characters, and false if not. Parameters: prefix - the prefix. boolean startsWith(String str) – returns true if the str is a prefix of the String. Returns: true if the character sequence represented by the argument is a prefix of the character sequence represented by this string; false otherwise. Run example » Definition and Usage. Java String startsWith() Method String Methods. startsWith public boolean startsWith(String prefix) Tests if this string starts with the specified prefix. Java String startsWith() Method String Methods. The source for this interactive example is stored in … There are two variants of startswith() method.This article depicts about all of them, as follows: 1. Note: The startsWith() method is case sensitive. This java tutorial shows how to use the startsWith() method of java.lang.String class. 1. This way you get the default locale for the jvm. Java - String startsWith() Method. Example. The startsWith() method determines whether a string begins with the characters of a specified string. This is overloaded method of startWith() method which is used to pass one extra argument (offset) to the function. (optional) startsWith() returns a Boolean value—true or false—depending on whether the string starts with the substring you have specified. This method works from the passed offset.

String startsWith() : This method tests if a string starts with the specified prefix beginning from 1st index.

You can use it like this: String haystack = "Session"; String needle = "sEsSi"; System.out.println(haystack.regionMatches(true, 0, needle, 0, 5)); // true The startsWith() method accepts two parameters:. Returns: true if the character sequence represented by the argument is a prefix of the character sequence represented by this string; false otherwise. boolean startsWith(String str, int fromIndex) – returns true if the String begins with str starting from the specified index fromIndex.

To filter String list by starting value, use filter() and startsWith() − list.stream().filter((b) -> b.startsWith("w")) The following is an example to filter string list by starting value − Example Description. Find out if the string starts with the specified characters: String myStr = "Hello"; System.out.println(myStr.startsWith("Hel")); // true System.out.println(myStr.startsWith("llo")); // false System.out.println(myStr.startsWith("o")); // false. This method returns booelan data type. The startsWith() method determines whether a string begins with the characters of a specified string. Run example » Definition and Usage. This method has two variants and tests if a string starts with the specified prefix beginning a specified index or by default at the beginning. This method returns booelan data type.

startsWith public boolean startsWith(String prefix) Tests if this string starts with the specified prefix. Advertisements. This method returns true if the string begins with the characters, and false if not. Example. Java program to check if a string starts with prefix argument string. Here is the syntax of this method − public boolean startsWith(String prefix) Parameters. The startsWith() method of String class generally checks if the beginning of the String is equivalent to String prefix method argument. Parameters: prefix - the prefix.

(required) position is the position at which the search should begin.

String startsWith(String str) example.

substring is the characters to be searched for at the start of the string object. Previous Page. The startsWith() method of String class generally checks if the beginning of the String is equivalent to String prefix method argument. Next Page . Syntax. The startsWith() method determines whether a string begins with the characters of a specified string, returning true or false as appropriate. Find out if the string starts with the specified characters: String myStr = "Hello"; System.out.println(myStr.startsWith("Hel")); // true System.out.println(myStr.startsWith("llo")); // false System.out.println(myStr.startsWith("o")); // false.