Java Array Last Index Of lastIndexOf(final char[] source, final int start, final int end, final char ch)

Description

last Index Of

License

Apache License

Declaration

public static final int lastIndexOf(final char[] source, final int start, final int end, final char ch) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

public class Main {
    public static final int lastIndexOf(final char[] source, final int start, final int end, final char ch) {
        assert source != null;

        for (int i = end - 1; i >= start; i--) {
            if (equalsIgnoreCase(source[i], ch)) {
                return i;
            }// w ww.  j  a  va 2 s  .com
        }
        return -1;
    }

    private static boolean equalsIgnoreCase(final char a, final char b) {
        if (a == b) {
            return true;
        }
        final char u1 = Character.toUpperCase(a);
        final char u2 = Character.toUpperCase(b);
        return u1 == u2;
    }

    public static boolean equalsIgnoreCase(final char[] source, final int sourceOffset, final char[] target,
            final int targetOffset, final int length) {
        if (length == 0) {
            return true;
        }
        for (int i = 0; i < length; i++) {
            if (!equalsIgnoreCase(source[sourceOffset + i], target[targetOffset + i])) {
                return false;
            }
        }
        return true;
    }

    public static boolean equalsIgnoreCase(final String source, final int sourceOffset, final char[] target,
            final int targetOffset, final int length) {
        if (length == 0) {
            return true;
        }
        for (int i = 0; i < length; i++) {
            if (!equalsIgnoreCase(source.charAt(sourceOffset + i), target[targetOffset + i])) {
                return false;
            }
        }
        return true;
    }

    public static boolean equalsIgnoreCase(final String s1, final String s2) {
        if (s1 == null) {
            return s2 == null;
        }
        return s1.equalsIgnoreCase(s2);
    }

    public static char toUpperCase(final char ch) {
        // TODO optimize
        return Character.toUpperCase(ch);
    }
}

Related

1. lastIndexOf(byte[] source, byte[] match)
2. lastIndexOf(char[] toBeFound, char[] array)
3. lastIndexOf(char[] toBeFound, char[] array)
4. lastIndexOf(final byte[] reference, final byte[] query)
5. lastIndexOf(final byte[] str, int startIndex, int endIndex, final byte ch)
6. lastIndexOf(final Object[] array, final Object objectToFind)
7. lastIndexOf(int[] array, int intToFind)
8. lastIndexOf(int[] array, int valueToFind)
9. lastIndexOf(Object o, Object[] vals)