pro.fessional.mirana.code

Class Excel26Az

java.lang.Object

pro.fessional.mirana.code.Excel26Az

@ThreadSafe
public class Excel26Az
extends Object

Convert Excel column coordinates, coordinates start from 1, index starts from 0.

Since:

2019-05-22

Author:

trydofor

Method Summary

Modifier and Type	Method and Description
static @NotNull String	index(int idx) convert index (0-base) to Excel coordinates [A..Z]
static int	index(@NotNull String col) convert Excel coordinates [A..Z] to index (0-base), eg.
static @NotNull String	number(int num) convert number (1-base) to Excel coordinates [A..Z]
static int	number(@NotNull String col) convert Excel coordinates [A..Z] to number (1-base), eg.
static int	title(@NotNull Map<String,Integer> head, @NotNull Iterable<String> rows, @Nullable String prefix) map header row to the header-index map

Methods inherited from class java.lang.Object

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

Method Detail

number

public static int number(@NotNull
                         @NotNull String col)

convert Excel coordinates [A..Z] to number (1-base), eg. A=1,Y=25,AA=26 ABZ = 1*26² + 2 * 26¹ + 26*26°= 676 + 52 + 26 = 754

number

@NotNull
public static @NotNull String number(int num)

convert number (1-base) to Excel coordinates [A..Z]

index

public static int index(@NotNull
                        @NotNull String col)

convert Excel coordinates [A..Z] to index (0-base), eg. A=0,Y=24,AA=25

index

@NotNull
public static @NotNull String index(int idx)

convert index (0-base) to Excel coordinates [A..Z]

title

public static int title(@NotNull @Param.Out
                        @NotNull Map<String,Integer> head,
                        @NotNull
                        @NotNull Iterable<String> rows,
                        @Nullable
                        @Nullable String prefix)

map header row to the header-index map

Parameters:

head - map of header and its index(0-base)

rows - head rows

prefix - header prefix

Returns:

count of new header, equal to rows.size() for no duplicates