public static String PadTrailing(String rString, int rLength, String rPad) {
String lTmpPad = ""; String lTmpStr = StrChkNull(rString); if (lTmpStr.length() >= rLength)
return lTmpStr.substring(0,lTmpStr.length());
else {
for(gCnt = 1; gCnt <= rLength-lTmpStr.length(); gCnt++) {
lTmpPad = rPad + lTmpPad;
}
}
return lTmpStr+lTmpPad;
}
public static String PadLeading(String rString, int rLength, String rPad) {
String lTmpPad = ""; String lTmpStr = StrChkNull(rString); if (lTmpStr.length() >= rLength)
return lTmpStr.substring(0,lTmpStr.length());
else {
for(gCnt = 1; gCnt <= rLength-lTmpStr.length(); gCnt++) {
lTmpPad = lTmpPad + rPad;
}
}
return lTmpPad+lTmpStr;
}
String lTmpPad = ""; String lTmpStr = StrChkNull(rString); if (lTmpStr.length() >= rLength)
return lTmpStr.substring(0,lTmpStr.length());
else {
for(gCnt = 1; gCnt <= rLength-lTmpStr.length(); gCnt++) {
lTmpPad = rPad + lTmpPad;
}
}
return lTmpStr+lTmpPad;
}
public static String PadLeading(String rString, int rLength, String rPad) {
String lTmpPad = ""; String lTmpStr = StrChkNull(rString); if (lTmpStr.length() >= rLength)
return lTmpStr.substring(0,lTmpStr.length());
else {
for(gCnt = 1; gCnt <= rLength-lTmpStr.length(); gCnt++) {
lTmpPad = lTmpPad + rPad;
}
}
return lTmpPad+lTmpStr;
}
String fill(String src, int startIndex, int length, char c ) {
char chars = new char[Math.max(startIndex + length, src.length())];
src.getChars(0,src.length(),chars,0);
java.util.Arrays.fill(chars, startIndex, startIndex + length, c ); return new String(chars);
}
如你想去除所有的空格而不添加新字符等,直接
str = str.replaceall(" ","");也行。
当然还有其它方法,如使用StringTokenizer也能完成这个任务
能不能再详细点呢?
谢谢!类外你的jdk是哪一版的啊?
/**功能:以特定字符串替换源字符串中指定字符串。
* 返回值:成功则返回新字符串,否则返回""。
* @param sourceString
* @param toReplaceString
* @param replaceString
* @return
*/
public String stringReplace(String sourceString, String toReplaceString, String replaceString)
{
String returnString = sourceString;
ArrayList arrayList = new ArrayList();
int stringLength = 0;
if(toReplaceString != null)
{
stringLength = toReplaceString.length();
}
if(returnString != null && returnString.length() > stringLength)
{
int max = 0;
String S4 = "";
for(int i = 0; i < sourceString.length(); i++)
{
max = i + toReplaceString.length() > sourceString.length()? sourceString.length():i + stringLength;
String S3 = sourceString.substring(i, max);
if(!S3.equals(toReplaceString))
{
S4 += S3.substring(0,1);
}
else
{
S4 += replaceString;
i += stringLength -1 ;
}
}
returnString = S4;
}
return returnString;
}
可我的程序需要的是填充而非替换