Java Utililty Methods Array Length Get

List of utility methods to do Array Length Get

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Description

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

Method

intlength(Object[] array)
length 
if (array == null)
    return 0;
return array.length;
intlength(Object[] array)
Null-safe operation to determine an array's length. 
return array != null ? array.length : 0;
intlength(Object[] array)
length 
if (isEmpty(array)) {
    return 0;
return array.length;
intlength(Object[] buf)
length 
return buf.length;
intlength(String[] arr)
length 
if (arr == null || arr.length == 0)
    return 0;
int sum = 0;
for (String s : arr)
    sum += length(s);
return sum;
intlength(T[] a)
length 
return a == null ? 0 : a.length;
floatlength3(float[] a)
length 
return (float) Math.sqrt(a[0] * a[0] + a[1] * a[1] + a[2] * a[2]);
int[]lengthArray(Object[][] arr)
Returns an array of the lengths of the sub-arrays of a given array. 
if (arr == null) {
    return null;
int[] ret = new int[arr.length];
for (int i = 0; i < arr.length; i++) {
    ret[i] = (arr[i] != null) ? arr[i].length : 0; 
return ret;
...
booleanlengthCheck(double[] src, double[] dest)
length Check 
return src.length == dest.length;
voidlengthCheck(final byte[] buffer, final byte length)
length Check 
if (buffer.length != length) {
    throw new IllegalArgumentException("buffer length must be " + length + " bytes");