Java Utililty Methods Integer Array Convert To

List of utility methods to do Integer Array Convert To

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Integer Array Convert To

Description

The list of methods to do Integer Array Convert To are organized into topic(s).

Method

double[] copySignedIntToDoubleArray(int[] src)

Copy an array of signed values in int, into an array of double.

Sign extension is performed.

if (src == null)
 return null;
int n = src.length;
double[] dst = new double[n];
for (int j = 0; j < n; ++j) {
 dst[j] = src[j]; 
return dst;
...

short[] copySignedIntToShortArray(int[] src)

Copy an array of signed values in int, into an array of short.

The value is truncated as necessary.

if (src == null)
 return null;
int n = src.length;
short[] dst = new short[n];
for (int j = 0; j < n; ++j) {
 dst[j] = (short) (src[j]); 
return dst;
...

int intArray2HashCode(int[] xs)
int Array Hash Code

int hc = 0;
for (int i = 0; i < xs.length; ++i) {
 hc = 31 * hc + xs[i];
return hc;

String intArray2HexString(int[] intArray)
int Array Hex String

if (intArray == null || intArray.length <= 0) {
 return "";
StringBuilder sb = new StringBuilder();
for (int i : intArray) {
 sb.append(String.format("%04x", i));
return sb.toString();
...

Integer[] intArray2IntegerArray(int[] array, int newLength)
int Array Integer Array

Integer[] ret = new Integer[newLength];
for (int i = 0; i < ret.length; i++) {
 ret[i] = array[i];
return ret;

String intArray2Json(int[] array)
int Array Json

if (array.length == 0)
 return "[]";
StringBuilder sb = new StringBuilder(array.length << 4);
sb.append('[');
for (int o : array) {
 sb.append(Integer.toString(o));
 sb.append(',');
sb.setCharAt(sb.length() - 1, ']');
return sb.toString();

String intArrayToAddressString(int vals[])
int Array To Address String

StringBuilder buf = new StringBuilder();
for (int i = 0; i < vals.length; ++i) {
 buf.append(String.format("%02x", vals[i]));
return buf.toString();

String intArrayToBits(int[] ina, int min, int max, int numBits)
Creates a bit string (0s and 1s) from an integer array.

StringBuilder buff = new StringBuilder();
for (int i = 0; i < ina.length; i++) {
 int in = ina[i];
 in = in - min;
 in = Math.min(in, max - min);
 String bits = Integer.toBinaryString(in);
 while (bits.length() < numBits)
 bits = "0" + bits;
...

char[][] intArrayToCharArray(int[][] intArray)
int Array To Char Array

char[][] result = new char[intArray.length][intArray[0].length];
for (int i = 0; i < intArray.length; i++) {
 for (int j = 0; j < intArray[0].length; j++) {
 result[i][j] = (char) intArray[i][j];
return result;

float[] intArrayToFloatArray(int[] intArray)
int Array To Float Array

float[] floatArray;
floatArray = new float[intArray.length];
for (int i = 0; i < intArray.length; i++) {
 floatArray[i] = (float) intArray[i];
return floatArray;