Java Utililty Methods Integer Create

List of utility methods to do Integer Create

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Description

The list of methods to do Integer Create are organized into topic(s).

Method

inttoInt(Object vo)
to Int 
if (vo == null) {
    return 0;
String voStr = toString(vo);
try {
    return Integer.parseInt(voStr);
} catch (Exception e) {
return 0;
inttoInt(short leftShort, short rightShort)
to Int 
int leftInt = leftShort;
int rightInt = rightShort;
return leftInt | (rightInt << 16);
intToInt(short n1, short n2)
To Int 
byte[] bytes = new byte[4];
bytes[1] = (byte) (n1 & 0xff);
bytes[0] = (byte) ((n1 >> 8) & 0xff);
bytes[3] = (byte) (n2 & 0xff);
bytes[2] = (byte) ((n2 >> 8) & 0xff);
return ToInt(bytes);
inttoInt(short s0, short s1)
Returns an int built from two shorts. 
return (s0 & 0xFFFF) | (s1 << 16);
inttoInt(short x, short y)
to Int 
return (x << 16) | (y & 0xffff);
int[]toInt(short[] arr)
Converts an array of short values to an array of integer values. 
int n = arr.length;
int[] converted = new int[n];
for (int i = 0; i < n; i++) {
    converted[i] = arr[i];
return converted;
int[]toInt(String arr, String separator)
to Int 
if (arr == null || "".equals(arr)) {
    return new int[0];
String[] array = arr.split(separator);
int[] r = new int[array.length];
for (int i = 0; i < array.length; i++) {
    r[i] = Integer.parseInt(array[i]);
return r;
inttoInt(String chars)
to Int 
if (chars.length() != 4) {
    throw new RuntimeException("chars should be 4 characters long");
return toInt(chars.charAt(0), chars.charAt(1), chars.charAt(2), chars.charAt(3));
inttoInt(String input, int defaultValue)
to Int 
try {
    return Integer.parseInt(input);
} catch (Exception e) {
    return defaultValue;
inttoInt(String input, int offset, int length)
Converts the given string into an integer using Horner's method. 
if (length == 1) {
    return input.charAt(offset) - '0';
int out = 0;
for (int i = offset + length - 1, factor = 1; i >= offset; --i, factor *= 10) {
    out += (input.charAt(i) - '0') * factor;
return out;
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