Utils (net.thevpc.common.thevpc-common-utils 1.23.1 API)

java.lang.Object
- net.thevpc.common.util.Utils

```
public class Utils
extends Object
```
Author:

taha.bensalah@gmail.com

Constructor Summary

Constructors
Constructor and Description

Utils()

Constructors
Constructor and Description
`Utils()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static int`	`compare(byte x, byte y)`
`static int`	`compare(double d1, double d2)`
`static int`	`compare(float f1, float f2)`
`static int`	`compare(int x, int y)`
`static int`	`compare(long x, long y)`
`static int`	`compare(Object a, Object b)`
`static int`	`compare(Object a, Object b, Comparator c)`
`static boolean[]`	`copyOf(boolean[] original, int newLength)` Copies the specified array, truncating or padding with `false` (if necessary) so the copy has the specified length.
`static char[]`	`copyOf(char[] original, int newLength)` Copies the specified array, truncating or padding with null characters (if necessary) so the copy has the specified length.
`static double[]`	`copyOf(double[] original, int newLength)` Copies the specified array, truncating or padding with zeros (if necessary) so the copy has the specified length.
`static float[]`	`copyOf(float[] original, int newLength)` Copies the specified array, truncating or padding with zeros (if necessary) so the copy has the specified length.
`static int[]`	`copyOf(int[] original, int newLength)` Copies the specified array, truncating or padding with zeros (if necessary) so the copy has the specified length.
`static long[]`	`copyOf(long[] original, int newLength)` Copies the specified array, truncating or padding with zeros (if necessary) so the copy has the specified length.
`static short[]`	`copyOf(short[] original, int newLength)`
`static <T> T[]`	`copyOf(T[] original, int newLength)`
`static <T,U> T[]`	`copyOf(U[] original, int newLength, Class<? extends T[]> newType)`
`static Object`	`copyOfArray(Object array)`
`static int`	`fibonacci(int number)`
`static int`	`hashCode(Object o)`
`static <T,V> V`	`ifType(Object object, Class<T> type, Function<T,V> r)`
`static long`	`inUseMemory()`
`static boolean`	`isEmpty(Object object)`
`static Object`	`joinArrays(Object... arrays)`
`static Object`	`joinArraysAsType(Class componentType, Object... arrays)`
`static long`	`maxFreeMemory()`
`static <T> T`	`ncast(Class<T> type, Object object)`
`static <T> void`	`ncastDo(Class<T> type, Object object, DoWith<T> r)`
`static Object`	`nonEmptyValue(Object... objects)`
`static Object`	`nonNullValue(Object... objects)`
`static <T> T`	`rand(Class<T> enumType)`
`static int`	`rand(int min, int max)`
`static <T> T`	`rand(List<T> values)`
`static <T> T`	`rand(T[] values)`
`static Object`	`removeArray(Object array, int offset, int removeCount)`
`static Object`	`removeArrayTail(Object array, int offset, int removeCount)`
`static <T,V> List<T>`	`sort(List<T> list, Function<T,V> converter, Comparator<V> c)`
`static <T,V> T[]`	`sort(T[] arr, Function<T,V> converter, Comparator<V> c)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Utils
```
public Utils()
```
- Method Detail
  - compare
```
public static int compare(Object a,
                          Object b)
```
  - compare
```
public static int compare(Object a,
                          Object b,
                          Comparator c)
```
  - joinArrays
```
public static Object joinArrays(Object... arrays)
```
  - joinArraysAsType
```
public static Object joinArraysAsType(Class componentType,
                                      Object... arrays)
```
  - copyOfArray
```
public static Object copyOfArray(Object array)
```
  - removeArrayTail
```
public static Object removeArrayTail(Object array,
                                     int offset,
                                     int removeCount)
```
  - removeArray
```
public static Object removeArray(Object array,
                                 int offset,
                                 int removeCount)
```
  - ifType
```
public static <T,V> V ifType(Object object,
                             Class<T> type,
                             Function<T,V> r)
```
  - ncastDo
```
public static <T> void ncastDo(Class<T> type,
                               Object object,
                               DoWith<T> r)
```
  - ncast
```
public static <T> T ncast(Class<T> type,
                          Object object)
```
  - isEmpty
```
public static boolean isEmpty(Object object)
```
  - nonNullValue
```
public static Object nonNullValue(Object... objects)
```
  - nonEmptyValue
```
public static Object nonEmptyValue(Object... objects)
```
  - fibonacci
```
public static int fibonacci(int number)
```
  - rand
```
public static int rand(int min,
                       int max)
```
  - rand
```
public static <T> T rand(List<T> values)
```
  - rand
```
public static <T> T rand(T[] values)
```
  - rand
```
public static <T> T rand(Class<T> enumType)
```
  - inUseMemory
```
public static long inUseMemory()
```
  - maxFreeMemory
```
public static long maxFreeMemory()
```
  - compare
```
public static int compare(byte x,
                          byte y)
```
  - compare
```
public static int compare(int x,
                          int y)
```
  - compare
```
public static int compare(long x,
                          long y)
```
  - compare
```
public static int compare(double d1,
                          double d2)
```
  - compare
```
public static int compare(float f1,
                          float f2)
```
  - hashCode
```
public static int hashCode(Object o)
```
  - copyOf
```
public static <T> T[] copyOf(T[] original,
                             int newLength)
```
  - copyOf
```
public static <T,U> T[] copyOf(U[] original,
                               int newLength,
                               Class<? extends T[]> newType)
```
  - copyOf
```
public static short[] copyOf(short[] original,
                             int newLength)
```
  - copyOf
```
public static int[] copyOf(int[] original,
                           int newLength)
```
    Copies the specified array, truncating or padding with zeros (if necessary) so the copy has the specified length. For all indices that are valid in both the original array and the copy, the two arrays will contain identical values. For any indices that are valid in the copy but not the original, the copy will contain 0. Such indices will exist if and only if the specified length is greater than that of the original array.
    
    Parameters:
    
    original - the array to be copied
    
    newLength - the length of the copy to be returned
    
    Returns:
    
    a copy of the original array, truncated or padded with zeros to obtain the specified length
    
    Throws:
    
    NegativeArraySizeException - if newLength is negative
    
    NullPointerException - if original is null
    
    Since:
    
    1.6
  - copyOf
```
public static long[] copyOf(long[] original,
                            int newLength)
```
    Copies the specified array, truncating or padding with zeros (if necessary) so the copy has the specified length. For all indices that are valid in both the original array and the copy, the two arrays will contain identical values. For any indices that are valid in the copy but not the original, the copy will contain 0L. Such indices will exist if and only if the specified length is greater than that of the original array.
    
    Parameters:
    
    original - the array to be copied
    
    newLength - the length of the copy to be returned
    
    Returns:
    
    a copy of the original array, truncated or padded with zeros to obtain the specified length
    
    Throws:
    
    NegativeArraySizeException - if newLength is negative
    
    NullPointerException - if original is null
    
    Since:
    
    1.6
  - copyOf
```
public static char[] copyOf(char[] original,
                            int newLength)
```
    Copies the specified array, truncating or padding with null characters (if necessary) so the copy has the specified length. For all indices that are valid in both the original array and the copy, the two arrays will contain identical values. For any indices that are valid in the copy but not the original, the copy will contain '\\u000'. Such indices will exist if and only if the specified length is greater than that of the original array.
    
    Parameters:
    
    original - the array to be copied
    
    newLength - the length of the copy to be returned
    
    Returns:
    
    a copy of the original array, truncated or padded with null characters to obtain the specified length
    
    Throws:
    
    NegativeArraySizeException - if newLength is negative
    
    NullPointerException - if original is null
    
    Since:
    
    1.6
  - copyOf
```
public static float[] copyOf(float[] original,
                             int newLength)
```
    Copies the specified array, truncating or padding with zeros (if necessary) so the copy has the specified length. For all indices that are valid in both the original array and the copy, the two arrays will contain identical values. For any indices that are valid in the copy but not the original, the copy will contain 0f. Such indices will exist if and only if the specified length is greater than that of the original array.
    
    Parameters:
    
    original - the array to be copied
    
    newLength - the length of the copy to be returned
    
    Returns:
    
    a copy of the original array, truncated or padded with zeros to obtain the specified length
    
    Throws:
    
    NegativeArraySizeException - if newLength is negative
    
    NullPointerException - if original is null
    
    Since:
    
    1.6
  - copyOf
```
public static double[] copyOf(double[] original,
                              int newLength)
```
    Copies the specified array, truncating or padding with zeros (if necessary) so the copy has the specified length. For all indices that are valid in both the original array and the copy, the two arrays will contain identical values. For any indices that are valid in the copy but not the original, the copy will contain 0d. Such indices will exist if and only if the specified length is greater than that of the original array.
    
    Parameters:
    
    original - the array to be copied
    
    newLength - the length of the copy to be returned
    
    Returns:
    
    a copy of the original array, truncated or padded with zeros to obtain the specified length
    
    Throws:
    
    NegativeArraySizeException - if newLength is negative
    
    NullPointerException - if original is null
    
    Since:
    
    1.6
  - copyOf
```
public static boolean[] copyOf(boolean[] original,
                               int newLength)
```
    Copies the specified array, truncating or padding with false (if necessary) so the copy has the specified length. For all indices that are valid in both the original array and the copy, the two arrays will contain identical values. For any indices that are valid in the copy but not the original, the copy will contain false. Such indices will exist if and only if the specified length is greater than that of the original array.
    
    Parameters:
    
    original - the array to be copied
    
    newLength - the length of the copy to be returned
    
    Returns:
    
    a copy of the original array, truncated or padded with false elements to obtain the specified length
    
    Throws:
    
    NegativeArraySizeException - if newLength is negative
    
    NullPointerException - if original is null
    
    Since:
    
    1.6
  - sort
```
public static <T,V> List<T> sort(List<T> list,
                                 Function<T,V> converter,
                                 Comparator<V> c)
```
  - sort
```
public static <T,V> T[] sort(T[] arr,
                             Function<T,V> converter,
                             Comparator<V> c)
```

Class Utils

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Utils

Method Detail

compare

compare

joinArrays

joinArraysAsType

copyOfArray

removeArrayTail

removeArray

ifType

ncastDo

ncast

isEmpty

nonNullValue

nonEmptyValue

fibonacci

rand

rand

rand

rand

inUseMemory

maxFreeMemory

compare

compare

compare

compare

compare

hashCode

copyOf

copyOf

copyOf

copyOf

copyOf

copyOf

copyOf

copyOf

copyOf

sort

sort