JAVA中去掉空格
JAVA中去掉空格
1.
String.trim()trim()是去掉首尾空格
str.replace(" ", ""); 去掉所有空格,包括首尾、中间String str = " hell o ";String str2 = str.replaceAll(" ", "");System.out.println(str2);
eplaceAll(" +","");去掉所有空格
str = .replaceAll("\\s*", "");
public String remove(String resource,char ch) { StringBuffer buffer=new StringBuffer(); int position=0; char currentChar; while(position<resource.length()) { currentChar=resource.charAt(position++); if(currentChar!=ch) buffer.append(currentChar); } return buffer.toString(); }
public class test1 { public static void main(String[] args) { String QJstr = " hello wch "; String QJstr1 = remove(QJstr,' '); System.out.println(QJstr + "\n" + QJstr1);} public static String remove(String resource,char ch) { StringBuffer buffer=new StringBuffer(); int position=0; char currentChar; while(position<resource.length()) { currentChar=resource.charAt(position++); if(currentChar!=ch) buffer.append(currentChar); } return buffer.toString(); }}