Java Array Last Index Of lastIndexOf(Object[] array, Object objectToFind)

Description

last Index Of

License

Apache License

Declaration

public static int lastIndexOf(Object[] array, Object objectToFind) 

Method Source Code

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

public class Main {
    public static final int INDEX_NOT_FOUND = -1;

    public static int lastIndexOf(Object[] array, Object objectToFind) {
        return lastIndexOf(array, objectToFind, Integer.MAX_VALUE);
    }/*w  ww  . j  a  va  2 s  .  c  o m*/

    public static int lastIndexOf(Object[] array, Object objectToFind, int startIndex) {
        if (array == null) {
            return INDEX_NOT_FOUND;
        }
        if (startIndex < 0) {
            return INDEX_NOT_FOUND;
        } else if (startIndex >= array.length) {
            startIndex = array.length - 1;
        }
        if (objectToFind == null) {
            for (int i = startIndex; i >= 0; i--) {
                if (array[i] == null) {
                    return i;
                }
            }
        } else if (array.getClass().getComponentType().isInstance(objectToFind)) {
            for (int i = startIndex; i >= 0; i--) {
                if (objectToFind.equals(array[i])) {
                    return i;
                }
            }
        }
        return INDEX_NOT_FOUND;
    }

    public static int lastIndexOf(long[] array, long valueToFind) {
        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
    }

    public static int lastIndexOf(long[] array, long valueToFind, int startIndex) {
        if (array == null) {
            return INDEX_NOT_FOUND;
        }
        if (startIndex < 0) {
            return INDEX_NOT_FOUND;
        } else if (startIndex >= array.length) {
            startIndex = array.length - 1;
        }
        for (int i = startIndex; i >= 0; i--) {
            if (valueToFind == array[i]) {
                return i;
            }
        }
        return INDEX_NOT_FOUND;
    }

    public static int lastIndexOf(int[] array, int valueToFind) {
        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
    }

    public static int lastIndexOf(int[] array, int valueToFind, int startIndex) {
        if (array == null) {
            return INDEX_NOT_FOUND;
        }
        if (startIndex < 0) {
            return INDEX_NOT_FOUND;
        } else if (startIndex >= array.length) {
            startIndex = array.length - 1;
        }
        for (int i = startIndex; i >= 0; i--) {
            if (valueToFind == array[i]) {
                return i;
            }
        }
        return INDEX_NOT_FOUND;
    }

    public static int lastIndexOf(short[] array, short valueToFind) {
        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
    }

    public static int lastIndexOf(short[] array, short valueToFind, int startIndex) {
        if (array == null) {
            return INDEX_NOT_FOUND;
        }
        if (startIndex < 0) {
            return INDEX_NOT_FOUND;
        } else if (startIndex >= array.length) {
            startIndex = array.length - 1;
        }
        for (int i = startIndex; i >= 0; i--) {
            if (valueToFind == array[i]) {
                return i;
            }
        }
        return INDEX_NOT_FOUND;
    }

    public static int lastIndexOf(char[] array, char valueToFind) {
        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
    }

    public static int lastIndexOf(char[] array, char valueToFind, int startIndex) {
        if (array == null) {
            return INDEX_NOT_FOUND;
        }
        if (startIndex < 0) {
            return INDEX_NOT_FOUND;
        } else if (startIndex >= array.length) {
            startIndex = array.length - 1;
        }
        for (int i = startIndex; i >= 0; i--) {
            if (valueToFind == array[i]) {
                return i;
            }
        }
        return INDEX_NOT_FOUND;
    }

    public static int lastIndexOf(byte[] array, byte valueToFind) {
        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
    }

    public static int lastIndexOf(byte[] array, byte valueToFind, int startIndex) {
        if (array == null) {
            return INDEX_NOT_FOUND;
        }
        if (startIndex < 0) {
            return INDEX_NOT_FOUND;
        } else if (startIndex >= array.length) {
            startIndex = array.length - 1;
        }
        for (int i = startIndex; i >= 0; i--) {
            if (valueToFind == array[i]) {
                return i;
            }
        }
        return INDEX_NOT_FOUND;
    }

    public static int lastIndexOf(double[] array, double valueToFind) {
        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
    }

    public static int lastIndexOf(double[] array, double valueToFind, double tolerance) {
        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE, tolerance);
    }

    public static int lastIndexOf(double[] array, double valueToFind, int startIndex) {
        if (isEmpty(array)) {
            return INDEX_NOT_FOUND;
        }
        if (startIndex < 0) {
            return INDEX_NOT_FOUND;
        } else if (startIndex >= array.length) {
            startIndex = array.length - 1;
        }
        for (int i = startIndex; i >= 0; i--) {
            if (valueToFind == array[i]) {
                return i;
            }
        }
        return INDEX_NOT_FOUND;
    }

    public static int lastIndexOf(double[] array, double valueToFind, int startIndex, double tolerance) {
        if (isEmpty(array)) {
            return INDEX_NOT_FOUND;
        }
        if (startIndex < 0) {
            return INDEX_NOT_FOUND;
        } else if (startIndex >= array.length) {
            startIndex = array.length - 1;
        }
        double min = valueToFind - tolerance;
        double max = valueToFind + tolerance;
        for (int i = startIndex; i >= 0; i--) {
            if (array[i] >= min && array[i] <= max) {
                return i;
            }
        }
        return INDEX_NOT_FOUND;
    }

    public static int lastIndexOf(float[] array, float valueToFind) {
        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
    }

    public static int lastIndexOf(float[] array, float valueToFind, int startIndex) {
        if (isEmpty(array)) {
            return INDEX_NOT_FOUND;
        }
        if (startIndex < 0) {
            return INDEX_NOT_FOUND;
        } else if (startIndex >= array.length) {
            startIndex = array.length - 1;
        }
        for (int i = startIndex; i >= 0; i--) {
            if (valueToFind == array[i]) {
                return i;
            }
        }
        return INDEX_NOT_FOUND;
    }

    public static int lastIndexOf(boolean[] array, boolean valueToFind) {
        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
    }

    public static int lastIndexOf(boolean[] array, boolean valueToFind, int startIndex) {
        if (isEmpty(array)) {
            return INDEX_NOT_FOUND;
        }
        if (startIndex < 0) {
            return INDEX_NOT_FOUND;
        } else if (startIndex >= array.length) {
            startIndex = array.length - 1;
        }
        for (int i = startIndex; i >= 0; i--) {
            if (valueToFind == array[i]) {
                return i;
            }
        }
        return INDEX_NOT_FOUND;
    }

    public static boolean isEmpty(Object[] array) {
        return array == null || array.length == 0;
    }

    public static boolean isEmpty(long[] array) {
        return array == null || array.length == 0;
    }

    public static boolean isEmpty(int[] array) {
        return array == null || array.length == 0;
    }

    public static boolean isEmpty(short[] array) {
        return array == null || array.length == 0;
    }

    public static boolean isEmpty(char[] array) {
        return array == null || array.length == 0;
    }

    public static boolean isEmpty(byte[] array) {
        return array == null || array.length == 0;
    }

    public static boolean isEmpty(double[] array) {
        return array == null || array.length == 0;
    }

    public static boolean isEmpty(float[] array) {
        return array == null || array.length == 0;
    }

    public static boolean isEmpty(boolean[] array) {
        return array == null || array.length == 0;
    }
}

Related

1. lastIndexOf(final Object[] array, final Object objectToFind)
2. lastIndexOf(int[] array, int intToFind)
3. lastIndexOf(int[] array, int valueToFind)
4. lastIndexOf(Object o, Object[] vals)
5. lastIndexOf(Object[] array, Object object)
6. lastIndexOf(Object[] elements, Object value)
7. lastIndexOf(String source, char[] chars)
8. lastIndexOf(String str, String[] path)
9. lastIndexOf(T[] array, T valueToFind, int startIndex)