Java Utililty Methods List Print

List of utility methods to do List Print

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Description

The list of methods to do List Print are organized into topic(s).

Method

voidprintPerformanceStats(String message, List iterationTimesInNanoseconds)
print Performance Stats 
Long max = Collections.max(iterationTimesInNanoseconds);
Long min = Collections.min(iterationTimesInNanoseconds);
System.out.format("%s: totalIterations=%d, min=%d us, max=%d us, avg=%d us.\n", message,
        iterationTimesInNanoseconds.size(), min / 1000, max / 1000,
        average(iterationTimesInNanoseconds) / 1000);
voidprintQueryResults(List res)
Convenience method for printing query results. 
if (res == null || res.isEmpty())
    System.out.println("Query result set is empty.");
else {
    for (Object row : res) {
        if (row instanceof List) {
            System.out.print("(");
            List<?> l = (List) row;
            for (int i = 0; i < l.size(); i++) {
...
voidprintRules(List rules, Class clazz)
print Rules 
System.out.println("[" + clazz.getName() + "] applied rules: ");
for (String rule : rules) {
    System.out.println(rule);
voidprintStats(final List shocktimes)
print Stats 
System.out.println("N: " + shocktimes.size());
long sum = 0;
for (final Long l : shocktimes) {
    sum += l;
final double mean = (sum / (double) shocktimes.size()) / 1000000000.0;
System.out.println("Mean: " + mean);
double ss = 0;
...
voidprintStringList(List list, String name)
print String List 
String output = "";
for (String text : list) {
    output += " '" + text + "' ";
System.out.println("###########" + name + "########## " + output);
StringprintStringList(List listToPrint)
Prints the elements of a string list without leading and ending brackets. 
return listToPrint.toString().replace("[", "").replace("]", "").trim();
voidprintStringList(List strings)
Prints a list of String to System.out.

Iterator<String> i = strings.iterator();
System.out.println("\nSize: " + strings.size() + "\n");
while (i.hasNext()) {
    System.out.println(i.next());
System.out.println("\n--------------------------------");
voidprintTable(List data)
print the table 
if (isNotProperTableData(data)) {
    return;
int numColumns = data.get(0).split("\\s").length;
int size = 0;
for (int i = 0; i < numColumns; i++) {
    size += getColumnSize(data, i);
int adjustedSize = size + 6 + (numColumns - 1) * 3; 
System.out.println(doubleHorizontalLine(adjustedSize));
for (int i = 0; i < data.size(); i++) {
    String line = data.get(i);
    System.out.print("||");
    String[] columnData = line.split("\\s");
    for (int j = 0; j < numColumns; j++) {
        System.out.print(" " + columnData[j] + getCellSpaces(data, j, columnData[j]) + " |");
    System.out.println("|");
System.out.println(doubleHorizontalLine(adjustedSize));
voidprintTopNTokens(LinkedList> list, int n)
This function takes a sorted List as input and print top N elements 
Iterator<Entry<String, Integer>> iterator = list.descendingIterator();
int size = list.size() - 1;
if (size < 0) {
    System.out.println("Empty Set");
    return;
System.out.format("\n%-20s%20s\n", "Token", "Frequency");
System.out.println("---------------------------------------------------------------------------------");
...
voidprintTuple(List tuple)
Print one tuple to stdout. 
System.out.println("Tuple:");
int i = 0;
for (Object v : tuple) {
    if (v instanceof String)
        System.out.println("  Value[" + i + "]: " + (String) v);
    else if (v instanceof Integer)
        System.out.println("  Value[" + i + "]: " + v);
    i++;
...