Java Utililty Methods Array Print

List of utility methods to do Array Print

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Description

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

Method

voidprintArray(Object[] array)
Prints the elements of the array, one per line, enclosed between *- and -*, except with the first line enclosed with 0- and -0. 
if (array == null) {
    System.out.println("null array");
    return;
if (array.length == 0) {
    System.out.println("zero-length array");
    return;
System.out.println("0-" + array[0].toString() + "-0");
for (int i = 1; i < array.length; i++) {
    System.out.println("*-" + array[i].toString() + "-*");
voidprintArray(Object[] array)
Print an array to console. 
String className = array[0].getClass().toString();
System.out.print(className.substring(className.lastIndexOf(".") + 1, className.length()) + " Array: [");
for (int i = 0; i < array.length; i++) {
    System.out.print(array[i]);
    if (i != array.length - 1) {
        System.out.print(", ");
System.out.println("]");
StringprintArray(Object[] cells)
print Array 
if (cells == null) {
    return "empty";
StringBuffer buffer = new StringBuffer();
for (int i = 0; i < cells.length; i++) {
    if (i > 0) {
        buffer.append(", ");
    buffer.append(cells[i]);
return buffer.toString();
voidprintArray(Object[] o)
Prints an array with values separated by commas. 
for (int i = 0; i < o.length; i++) {
    System.out.print(o[i]);
    if (i < o.length - 1)
        System.out.print(", ");
System.out.println();
StringprintArray(Object[] strArray, String split)
print Array 
String result = "";
for (int i = 0; i < strArray.length - 1; i++) {
    result += String.valueOf(strArray[i]) + split;
result += strArray[strArray.length - 1];
return result;
voidprintArray(String arrayLabel, Object[] array)
Debugging support -- Print contents of an array. 
if (array == null) {
    System.out.println(arrayLabel + " is null.");
} else if (array.length == 0) {
    System.out.println(arrayLabel + " is empty.");
} else {
    System.out.println(arrayLabel);
    for (int i = 0; i < array.length; i++) {
        Object value = array[i];
...
StringprintArray(String[] arr, char separator)
print string array with specific separator 
StringBuilder buf = new StringBuilder();
for (String s : arr)
    buf.append(s).append(separator);
if (buf.length() > 0)
    buf.deleteCharAt(buf.length() - 1);
return buf.toString();
StringprintArray(String[] s)
Return a representation of a String array in the format of "['{1}','{2}',...]". 
StringBuffer sb = new StringBuffer("[");
if (s == null)
    sb.append("null");
else
    for (int i = 0; i < s.length; i++)
        sb.append(i == 0 ? "" : ",").append('"').append(s[i]).append('"');
return sb.append("]").toString();
voidprintArray(String[] s)
Affiche un array 
for (int i = 0; i < s.length; i++) {
    System.out.println(i + ". " + s[i]);
voidprintArray(T[] arr)
print Array 
for (T t : arr) {
    System.out.print(t);
System.out.println();