Package ucar.nc2.ogc.erddap.util

Class ErddapString2

java.lang.Object
ucar.nc2.ogc.erddap.util.ErddapString2
public class ErddapString2 extends Object
A class with static String methods that add to native String methods. All are static methods.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static String
    ERROR
    ERROR is a constant so that it will be consistent, so that one can search for it in output files.

  • Constructor Summary

    Constructors
    Constructor
    Description
    ErddapString2()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static int
    indexOf(char[] cArray, char c, int fromIndex)
    Finds the first instance of c at or after fromIndex (0..
    static boolean
    isDigit(int c)
    0..9.
    static boolean
    isLetter(int c)
    This includes hiASCII/ISO Latin 1/ISO 8859-1, but not extensive unicode characters.
    static double
    parseDouble(String s)
    Convert a string to a double.
    static int
    parseInt(String s)
    Convert a string to an int.
    static long
    parseLong(String s)
    This converts String representation of a long.
    static String
    replaceAll(String s, char oldCh, char newCh)
    Returns a string where all occurences of oldCh have been replaced with newCh.
    static int[]
    toRational(double d)
    This converts a double to a rational number (m * 10^t).

    Methods inherited from class java.lang.Object

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

  • Field Details

    • ERROR

      public static String ERROR
      ERROR is a constant so that it will be consistent, so that one can search for it in output files. This is NOT final, so EDStatic can change it. This is the original definition, referenced by many other classes.

  • Constructor Details

    • ErddapString2

      public ErddapString2()

  • Method Details

    • indexOf

      public static int indexOf(char[] cArray, char c, int fromIndex)
      Finds the first instance of c at or after fromIndex (0.. ) in cArray.
      Parameters:
      cArray -
      c - the char you want to find
      fromIndex - the index number of the position to start the search
      Returns:
      The first instance of c. If not found, it returns -1.

    • isLetter

      public static boolean isLetter(int c)
      This includes hiASCII/ISO Latin 1/ISO 8859-1, but not extensive unicode characters. Letters are A..Z, a..z, and #192..#255 (except #215 and #247). For unicode characters, see Java Lang Spec pg 14.
      Parameters:
      c - a char
      Returns:
      true if c is a letter

    • isDigit

      public static boolean isDigit(int c)
      0..9. Non-Latin numeric characters are not included (see Java Lang Spec pg 14).
      Parameters:
      c - a char
      Returns:
      true if c is a digit

    • replaceAll

      public static String replaceAll(String s, char oldCh, char newCh)
      Returns a string where all occurences of oldCh have been replaced with newCh. This doesn't throw exceptions if bad values.

    • parseInt

      public static int parseInt(String s)
      Convert a string to an int. Leading or trailing spaces are automatically removed. This accepts hexadecimal integers starting with "0x". Leading 0's (e.g., 0012) are ignored; number is treated as decimal (not octal as Java would). Floating point numbers are rounded. This won't throw an exception if the number isn't formatted right. To make a string from an int, use ""+i, Integer.toHexString, or Integer.toString(i,radix).
      Parameters:
      s - is the String representation of a number.
      Returns:
      the int value from the String (or Integer.MAX_VALUE if error).

    • parseDouble

      public static double parseDouble(String s)
      Convert a string to a double. Leading or trailing spaces are automatically removed. This accepts hexadecimal integers starting with "0x". Whole number starting with '0' (e.g., 012) is treated as decimal (not octal as Java would). This won't throw an exception if the number isn't formatted right.
      Parameters:
      s - is the String representation of a number.
      Returns:
      the double value from the String (a finite value, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY, or Double.NaN if error).

    • parseLong

      public static long parseLong(String s)
      This converts String representation of a long. Leading or trailing spaces are automatically removed. This *doesn't* round. So floating point values lead to Long.MAX_VALUE.
      Parameters:
      s - a valid String representation of a long value
      Returns:
      a long (or Long.MAX_VALUE if trouble).

    • toRational

      public static int[] toRational(double d)
      This converts a double to a rational number (m * 10^t). This is similar to Math2.mantissa and Math2.intExponent, but works via string manipulation to avoid roundoff problems (e.g., with 6.6260755e-24).
      Parameters:
      d -
      Returns:
      int[2]: [0]=m, [1]=t. (or {0, 0} if d=0, or {1, Integer.MAX_VALUE} if !finite(d))