List of usage examples for java.lang NumberFormatException NumberFormatException
public NumberFormatException(String s)
NumberFormatException with the specified detail message. From source file:Main.java
public static byte[] getBodyBytes(String ip, String port, byte[] key, byte[] ips) throws NumberFormatException, IOException { String[] ipArr = ip.split("\\."); byte[] ipByte = new byte[4]; ipByte[0] = (byte) (Integer.parseInt(ipArr[0]) & 0xFF); ipByte[1] = (byte) (Integer.parseInt(ipArr[1]) & 0xFF); ipByte[2] = (byte) (Integer.parseInt(ipArr[2]) & 0xFF); ipByte[3] = (byte) (Integer.parseInt(ipArr[3]) & 0xFF); ByteArrayOutputStream baos = new ByteArrayOutputStream(); DataOutputStream dos = new DataOutputStream(baos); dos.write(ipByte);/* w ww . j av a2s.c o m*/ if (!isNum(port)) throw new NumberFormatException("port is not number..."); byte[] portByte = short2bytes(Integer.parseInt(port)); dos.write(portByte); // dos.writeByte(key.getBytes().length); dos.write(key); if (ips != null && ips.length > 0 && dos != null) { dos.write(ips); } byte[] bs = baos.toByteArray(); baos.close(); dos.close(); return bs; }
From source file:Main.java
/** * <p>The inverse function of the above.</p> * * <p>Converts a string representing the encoding of some bytes in Base-64 * to their original form.</p>/* w ww .j ava 2 s . com*/ * * @param str the Base-64 encoded representation of some byte(s). * @return the bytes represented by the <code>str</code>. * @throws NumberFormatException if <code>str</code> is <code>null</code>, or * <code>str</code> contains an illegal Base-64 character. * @see #toBase64(byte[]) */ public static final byte[] fromBase64(String str) { int len = str.length(); if (len == 0) { throw new NumberFormatException("Empty string"); } byte[] a = new byte[len + 1]; int i, j; for (i = 0; i < len; i++) { try { a[i] = (byte) BASE64_CHARS.indexOf(str.charAt(i)); } catch (ArrayIndexOutOfBoundsException x) { throw new NumberFormatException("Illegal character at #" + i); } } i = len - 1; j = len; try { while (true) { a[j] = a[i]; if (--i < 0) { break; } a[j] |= (a[i] & 0x03) << 6; j--; a[j] = (byte) ((a[i] & 0x3C) >>> 2); if (--i < 0) { break; } a[j] |= (a[i] & 0x0F) << 4; j--; a[j] = (byte) ((a[i] & 0x30) >>> 4); if (--i < 0) { break; } a[j] |= (a[i] << 2); j--; a[j] = 0; if (--i < 0) { break; } } } catch (Exception ignored) { } try { // ignore leading 0-bytes while (a[j] == 0) { j++; } } catch (Exception x) { return new byte[1]; // one 0-byte } byte[] result = new byte[len - j + 1]; System.arraycopy(a, j, result, 0, len - j + 1); return result; }
From source file:Main.java
public static int parseDual(String s) { if (s.length() < 2 || Character.toLowerCase(s.charAt(s.length() - 1)) != 'd') throw new NumberFormatException("not a dual number: " + s); if (s.length() > 33) throw new NumberFormatException("number has more than 32 digits:" + s); int val = 0; for (int i = 0; i < s.length() - 1; i++) { val = val << 1; switch (s.charAt(i)) { case '1': val |= 1; break; case '0': break; default:/* ww w. j ava 2s.c o m*/ throw new NumberFormatException("not a dual number: " + s); } } return val; }
From source file:Main.java
public static int romanToInt(String romanNumber) { if (!romanNumber.matches("[IVXLCDM]+")) { // Not a roman number throw new NumberFormatException("Not a roman number: " + romanNumber); }//from ww w . j ava2 s .co m String num = "IVXLCDM"; int[] value = { 1, 5, 10, 50, 100, 500, 1000 }; int sum = 0; for (int i = romanNumber.length() - 1; i >= 0;) { int posR = num.indexOf(romanNumber.charAt(i)); if (i > 0) { int posL = num.indexOf(romanNumber.charAt(i - 1)); if (posR <= posL) { sum += value[posR]; i--; } else { sum += value[posR] - value[posL]; i -= 2; } } else { // i==0 sum += value[posR]; i--; } } // So now <code>sum</code> is the resulting number. return sum; }
From source file:org.apache.wookie.w3c.util.NumberUtils.java
public static int processNonNegativeInteger(String in) throws NumberFormatException { int result = 0; in = UnicodeUtils.normalizeSpaces(in); StringUtils.stripStart(in, ""); if (in.length() == 0) throw new NumberFormatException("no non-space characters"); for (int pos = 0; pos < in.length(); pos++) { String nextchar = in.substring(pos, pos + 1); // If the nextchar is not one of U+0030 (0) .. U+0039 (9), then return result. try {// w ww . j av a 2 s .c om int i = Integer.parseInt(nextchar); result = result * 10 + i; } catch (Exception e) { return result; } } return result; }
From source file:Main.java
/** * Parses a percentage and returns a scaled float. * @param s contains the number to parse. * @return a float scaled number. 1.0 represents 100%. * @throws NumberFormatException if the number format is invalid or does not end with '%'. *//*ww w .ja v a2s . c o m*/ public static float parsePercentage(String s) throws NumberFormatException { if (!s.endsWith("%")) { throw new NumberFormatException("Percentages must end with %"); } return Float.parseFloat(s.substring(0, s.length() - 1)) / 100; }
From source file:Main.java
private static int parse(char[] chars, int offset, int len, int radix, boolean negative) throws NumberFormatException { int max = Integer.MIN_VALUE / radix; int result = 0; for (int i = 0; i < len; i++) { int digit = Character.digit(chars[i + offset], radix); if (digit == -1) { throw new NumberFormatException("Unable to parse"); }/* w w w .j a v a 2s . c om*/ if (max > result) { throw new NumberFormatException("Unable to parse"); } int next = result * radix - digit; if (next > result) { throw new NumberFormatException("Unable to parse"); } result = next; } /*while (offset < len) { }*/ if (!negative) { result = -result; if (result < 0) { throw new NumberFormatException("Unable to parse"); } } return result; }
From source file:Main.java
private static int parse(char[] string, int start, int length, int offset, int radix, boolean negative) throws NumberFormatException { int max = Integer.MIN_VALUE / radix; int result = 0; while (offset < length) { int digit = Character.digit(string[start + (offset++)], radix); if (digit == -1) { throw new NumberFormatException(new String(string, start, length)); }/*from w w w.j a v a2 s.co m*/ if (max > result) { throw new NumberFormatException(new String(string, start, length)); } int next = result * radix - digit; if (next > result) { throw new NumberFormatException(new String(string, start, length)); } result = next; } if (!negative) { result = -result; if (result < 0) { throw new NumberFormatException(new String(string, start, length)); } } return result; }
From source file:Main.java
public static String formatValue(double value) { if (value < 0) { throw new NumberFormatException("Negative value " + value); }//from w ww . j a v a2 s. co m String s = String.format("%.8f", value); while (s.length() > 1 && (s.endsWith("0") || s.endsWith("."))) { s = (s.substring(0, s.length() - 1)); } return s; }
From source file:Main.java
public static int prefixCodedToInt(final String prefixCoded) { final int shift = prefixCoded.charAt(0) - SHIFT_START_INT; if (shift > 31 || shift < 0) throw new NumberFormatException( "Invalid shift value in prefixCoded string (is encoded value really an INT?)"); int sortableBits = 0; for (int i = 1, len = prefixCoded.length(); i < len; i++) { sortableBits <<= 7;//from w w w . j ava 2 s .c om final char ch = prefixCoded.charAt(i); if (ch > 0x7f) { throw new NumberFormatException("Invalid prefixCoded numerical value representation (char " + Integer.toHexString(ch) + " at position " + i + " is invalid)"); } sortableBits |= ch; } return (sortableBits << shift) ^ 0x80000000; }