Module com.github.ushiosan.jvm_utilities

Package ushiosan.jvm_utilities.internal.collection

Class ArrsImpl

java.lang.Object

ushiosan.jvm_utilities.internal.collection.ArrsImpl

public final class ArrsImpl
extends Object

Method Summary

Modifier and Type	Method	Description
static Number @NotNull []	toNumberArray(@NotNull Object array)	Convert any array of primitive numbers to an array of numeric objects
static Object @NotNull []	toObjectArray(@NotNull Object array)	Convert any array to object array.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

toNumberArray

public static Number @NotNull [] toNumberArray(@NotNull
 @NotNull Object array)

Convert any array of primitive numbers to an array of numeric objects

Parameters:

array - the array to convert

Returns:

an array with all numeric objects

Throws:

IllegalArgumentException - Error if the array is not valid

toObjectArray

public static Object @NotNull [] toObjectArray(@NotNull
 @NotNull Object array)

Convert any array to object array. This also applies to primitive types.

Be careful with this method because this method uses a trick to convert primitive types to numeric types and does not use wrapper classes. Instead, the Number class is used for any numeric type (except for the char type).

Examples

 // For numeric primitives always use Number class
 Number[] intArr = (Number[]) ArraysImpl.toObjectArray(new int[] {2, 4, 6, 8});
 Number[] shortArr = (Number[]) ArraysImpl.toObjectArray(new short[] {12, 21, 42, 120, 0xFF});
 Number[] floatArr = (Number[]) ArraysImpl.toObjectArray(new float[] {1f, 2f, 3f, 120.2234f});
 // Wrapped clases
 Boolean[] boolArr = (Boolean[]) ArraysImpl.toObjectArray(new boolean[] {true, false, false, true});
 Character[] intArr = (Character[]) ArraysImpl.toObjectArray(new char[] {'H', 'e', 'l', 'l', 'o'});
 

Parameters:

array - the array to convert

Returns:

a converted array object