OnJava8-Examples/onjava/ConvertTo.java
2020-10-07 13:35:40 -06:00

106 lines
3.0 KiB
Java

// onjava/ConvertTo.java
// (c)2020 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
package onjava;
public interface ConvertTo {
static boolean[] primitive(Boolean[] in) {
boolean[] result = new boolean[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i]; // Autounboxing
return result;
}
static char[] primitive(Character[] in) {
char[] result = new char[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static byte[] primitive(Byte[] in) {
byte[] result = new byte[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static short[] primitive(Short[] in) {
short[] result = new short[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static int[] primitive(Integer[] in) {
int[] result = new int[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static long[] primitive(Long[] in) {
long[] result = new long[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static float[] primitive(Float[] in) {
float[] result = new float[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static double[] primitive(Double[] in) {
double[] result = new double[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
// Convert from primitive array to wrapped array:
static Boolean[] boxed(boolean[] in) {
Boolean[] result = new Boolean[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i]; // Autoboxing
return result;
}
static Character[] boxed(char[] in) {
Character[] result = new Character[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static Byte[] boxed(byte[] in) {
Byte[] result = new Byte[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static Short[] boxed(short[] in) {
Short[] result = new Short[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static Integer[] boxed(int[] in) {
Integer[] result = new Integer[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static Long[] boxed(long[] in) {
Long[] result = new Long[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static Float[] boxed(float[] in) {
Float[] result = new Float[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
static Double[] boxed(double[] in) {
Double[] result = new Double[in.length];
for(int i = 0; i < in.length; i++)
result[i] = in[i];
return result;
}
}