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Text lesson

substring()

Example

Provide a section of a string as a substring.

String myStr = "Hello, World!";
System.out.println(myStr.substring(7, 12));

Definition and Usage

The substring() method retrieves a portion of the string.

If the end parameter is omitted, the substring extends to the end of the string.

Syntax

One of the following:

public String substring(int start, int end)

public String substring(int start)

Parameter Values

Parameter	Description
start	Necessary: The index indicating the character where the substring begins.
end	Necessary: The index indicating the character where the substring begins.

Technical Details

Returns	A string that contains a portion of the original string as a substring.
Throws	The IndexOutOfBoundsException occurs if either the start or end values are negative, exceed the length of the string, or if start is greater than end.
Java Version	Any.