Java Utililty Methods Collection Max

List of utility methods to do Collection Max

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Description

The list of methods to do Collection Max are organized into topic(s).

Method

StringtoString(Collection collection, int maxLen)
Converts given collection to string of given maximum count of items. 
StringBuilder builder = new StringBuilder();
builder.append("[");
int i = 0;
for (Iterator<?> iterator = collection.iterator(); iterator.hasNext() && i < maxLen; i++) {
    if (i > 0)
        builder.append(", ");
    builder.append(iterator.next());
builder.append("]");
return builder.toString();
StringtoString(Collection entries, int max)
to String 
StringBuffer sb = new StringBuffer("[");
int cnt = Math.min(entries.size(), max);
Iterator<?> it = entries.iterator();
for (int i = 0; i < cnt; i++) {
    if (i > 0)
        sb.append(",");
    sb.append(it.next().toString());
if (cnt < entries.size()) {
    sb.append(",...");
sb.append("]");
return sb.toString();
voidtransfer(Collection source, Collection dest, int maxElems)
Transfer up to 'maxElems' elements from the source to the destination. 
int j = 0;
for (Iterator i = source.iterator(); i.hasNext() && j < maxElems; j++) {
    dest.add(i.next());
    i.remove();
Collectiontruncate(Collection coll, int maximumSize)
truncate 
if (coll.size() > maximumSize)
    try {
        Iterator<T> iter = coll.iterator();
        for (int i = 0; i < maximumSize; ++i) {
            iter.next();
        while (iter.hasNext()) {
            iter.next();
...
StringvalueOfCollection(Collection c, int maxLength)
This returns a String representation of a Collection, with a maximum length specified. 
if (c == null)
    return "";
Iterator<?> i = c.iterator();
if (!i.hasNext())
    return "[]";
StringBuilder sb = new StringBuilder((int) (maxLength * 1.5));
sb.append('[');
for (;;) {
...