Feb 18, 2017 · In the example code above we use the String.substring () method to gather our sub-string from within the string. To get this sub-string we need to supply the String.substring () method …

0 “Substring creates a new object out of source string by taking a portion of original string”. Until Java 1.7, substring holds the reference of the original character array, which means even a sub-string of 5 …

14 Both are 0-based, but the start is inclusive and the end is exclusive. This ensures the resulting string is of length start - end. To make life easier for substring operation, imagine that characters are …

May 31, 2012 · I always thought if I do String s = "Hello World".substring(0, 5), then I just get a new string s = "Hello". This is also documented in the Java API doc: "Returns a new string that is a …

Java: Getting a substring from a string starting after a particular character Asked 12 years, 11 months ago Modified 1 year, 7 months ago Viewed 637k times

Apr 19, 2013 · Strings in Java are immutable. Basically this means that, once you create a string object, you won't be able to modify/change the content of a string. As a result, if you perform any …

Jul 14, 2010 · String numbers = text.substring(text.length() - 7, text.length()); But be sure to catch Exception if the input string length is less than 7. You can replace 7 with any number say N, if you …

Jun 5, 2009 · Java's substring method fails when you try and get a substring starting at an index which is longer than the string. An easy alternative is to use Apache Commons StringUtils.substring:

Dec 14, 2011 · For typical implementations of String, s.substring(0, s.length()) will return s rather than allocating a new String. This may behave incorrectly 1 if your String contains Unicode codepoints …

Oct 18, 2009 · How do I get up to the first n characters of a string in Java without doing a size check first (inline is acceptable) or risking an IndexOutOfBoundsException?