Java Utililty Methods Type Size

List of utility methods to do Type Size

  1. HOME
  2. Java
  3. T
  4. Type Size

Description

The list of methods to do Type Size are organized into topic(s).

Method

intsizeOf(Class cls)
size Of 
if (cls == boolean.class)
    return 1;
if (cls == byte.class)
    return 1;
if (cls == char.class)
    return 2;
if (cls == short.class)
    return 2;
...
intsizeOf(Class clz)
Get the size of a primitive type. 
switch (clz.getName()) {
case "int":
    return Integer.BYTES;
case "short":
    return Short.BYTES;
case "long":
    return Long.BYTES;
case "double":
...
intsizeOf(double v)
size Of 
return 8;
intsizeOf(int fieldNumber)
size Of 
return fieldNumber > 15 ? 2 : 1;
intsizeOf(int tagNumber, int contentLength)
Computes the DER-encoded size of content with a specified tag number. 
if (tagNumber < 0 || contentLength < 0) {
    throw new IllegalArgumentException(
            "Invalid tagNumber/contentLength: " + tagNumber + ", " + contentLength);
int len = 0;
if (tagNumber <= 30) {
    len++; 
} else {
...
intsizeOf(int value)
size Of 
if (value < 0)
    value = ~value;
value >>= BYTE_OFFSET - 1;
for (int i = 1; i < 4; i++) {
    if (value == 0)
        return i;
    value >>= BYTE_OFFSET;
return 4;
intsizeOf(int[] arr)
size Of 
return arr == null ? 0 : arr.length;
intsizeOf(String str)
Returns the number of bytes required to be written out for the given object. 
if (str == null) {
    return 1;
} else {
    return 5 + (2 * str.length());
intsizeOf(String type)
size Of 
if ("byte".equals(type)) {
    return 1;
} else if ("char".equals(type)) {
    return 1;
} else if ("double".equals(type)) {
    return 2;
} else if ("float".equals(type)) {
    return 1;
...
intsizeOf(String typeDescriptor)
Return the size of a type. 
if (typeDescriptor.length() != 1) {
    return 1;
char ch = typeDescriptor.charAt(0);
if (ch == 'J' || ch == 'D') {
    return 2;
} else {
    return 1;
...