Java Utililty Methods String Truncate

List of utility methods to do String Truncate

  1. HOME
  2. Java
  3. S
  4. String Truncate

Description

The list of methods to do String Truncate are organized into topic(s).

Method

StringtruncateString(String s)
Chop long strings down to size for display purposes 
if (s == null || s.length() < 28) {
    return s;
} else {
    return s.substring(27) + "...";
StringtruncateString(String s, int numChars)
truncate String 
if (s != null && s.length() > numChars) {
    s = s.substring(0, numChars);
return s;
StringtruncateString(String source, int prefixLength, int totalLength)
Description: short a string to the format xx...xxxx 
if (source.length() <= totalLength) {
    return source;
if (prefixLength + 3 > totalLength) {
    throw new IllegalArgumentException("total length meust be larger than prefix length + 3!");
int tokeep = totalLength - prefixLength - 3;
return source.substring(0, prefixLength) + "..."
...
StringtruncateString(String source, String suffix)
Returns a new string that is source with suffix removed from the end. 
return (source.endsWith(suffix)) ? truncateString(source, suffix.length()) : source;
StringtruncateString(String str, int length)
truncate String 
if (str == null)
    return null;
String retValue;
if (str.length() <= length) {
    retValue = str;
} else {
    retValue = str.substring(0, length);
return retValue;
StringtruncateString(String str, int length, String suffix)
Truncate a string by the given length, cutting words if necessary. 
if (str != null && length >= 0) {
    suffix = (suffix == null ? "" : suffix);
    if (str.length() > (length - suffix.length())) {
        int size = length - suffix.length();
        while (size < 0) {
            size++;
        str = str.substring(0, size) + suffix;
...
StringtruncateString(String str, int maxlen)
truncate String 
return truncateString(str, maxlen, false);
StringtruncateString(String str, int size)
truncate String 
if (size <= 0 || size > str.length()) {
    return str;
return str.substring(0, size);
StringtruncateString(String str, int toLen)
Truncate a given string str to given length toLen. 
String newStr = null;
if (null == str) {
    return str;
if (toLen <= 0) {
    return "";
if (str.length() > toLen) {
...
StringtruncateString(String string, int maxLength)
Truncates a string to have at maximum maxLength characters.
Where truncation is necessary an ellipsis is appended to the truncated string. 
if ((string != null) && (string.length() > maxLength)) {
    return string.substring(0, maxLength - ELLIPSIS.length() + 1) + ELLIPSIS;
} else {
    return string;