Solve almostIncreasingSequence (Codefights)

Question

Given a sequence of integers as an array, determine whether it is possible to obtain a strictly increasing sequence by removing no more than one element from the array.

Answer 1

boolean almostIncreasingSequence(int[] sequence) {
    int length = sequence.length;
    if(length ==1) return true;
    if(length ==2 && sequence[1] > sequence[0]) return true;
    int count = 0;
    int index = 0;
    boolean iter = true;

    while(iter){
        index = checkSequence(sequence,index);
        if(index != -1){
            count++;
            index++;
            if(index >= length-1){
                iter=false;
            }else if(index-1 !=0){
                if(sequence[index-1] <= sequence[index]){
                    iter=false;
                    count++;
                }else if(((sequence[index] <= sequence[index-2])) && ((sequence[index+1] <= sequence[index-1]))){
                    iter=false;
                    count++;                    
                }
            }
        }else{
            iter = false;
        }
    }
    if(count > 1) return false;
    return true;
}

 int checkSequence(int[] sequence, int index){
    for(; index < sequence.length-1; index++){
        if(sequence[index+1] <= sequence[index]){
            return index; 
        }
    }
    return -1;
}