Learn to write a java program to remove all the white spaces from a given string using regular expression (“\\s”) and isWhitespace() method. Learn to write a Java program toremove all the white spaces and non-visible charactersfrom a givenstring. It may not be needed in real world a...
可以使用Character Class中的isWhitespace函数删除空格。 public static void main(String[] args) { String withSpace = "Remove white space from line"; StringBuilder removeSpace = new StringBuilder(); for (int i = 0; i<withSpace.length();i++){ if(!Character.isWhitespace(withSpace.charAt(i)))...
If you need toremove all whitespace characters from a string, you can use theString replaceAll() methodwith proper regex. classMain{publicstaticvoidmain(String[] args){ String str1 ="Learn\nJava \n\n "; String result;// replace all whitespace characters with empty string result = str1.re...
Remove whitespace from both sides of a string:String myStr = " Hello World! "; System.out.println(myStr); System.out.println(myStr.trim());Try it Yourself » Definition and UsageThe trim() method removes whitespace from both ends of a string....
Single (') or double (") quotes can be used to enclose arguments that contain whitespace characters. All content between the open quote and the first matching close quote are preserved by simply removing the pair of quotes. In case a matching quote is not found, the launcher will abort wit...
可以使用String类的replaceAll()方法,结合正则表达式,将要删除的单词替换为空字符串。例如: 代码语言:java 复制 String str = "This is a sample string"; String wordsToRemove = "is a"; String result = str.replaceAll("\\b(" + wordsToRemove + ")\\b", ""); System.out.println(result); ...
//---"abc" //判断一字符串是否包含另一字符串 StringUtils.contains("abc", "z");//---false StringUtils.containsIgnoreCase("abc", "A");//---true //统计一字符串在另一字符串中出现次数 StringUtils.countMatches("abba", "a");//---2 //删除字符串中的梭有空格 StringUtils.deleteWhitespace("...
3. Remove Leading as well as Trailing Whitespaces 3.1. UsingString.trim() If we want toremove surrounding whitespaces from string, then the best way is to useString.trim()method. String blogName = " how to do in java "; String trimmedString = blogName.trim(); ...
static booleanisEmpty(java.lang.String pStr) Return true if pStr is null or has length zero. static booleanisNotBlank(java.lang.String pStr) Return true if pStr is not null, not empty string, or does not consist entirely of whitespace where whitespace is defined by the String.trim method....
The scanner can also use delimiters other than whitespace. This example reads several items in from a string: <blockquote> text/java Copy {@code String input = "1 fish 2 fish red fish blue fish"; Scanner s = new Scanner(input).useDelimiter("\\s*fish\\s*"); System.out.println(s....