几个关于数据增查的方法

public int findInsertPlace(List<Integer> nums, int target)
{
    int length = nums.size();
    if(target <= nums.get(0))
        return 0;


    for(int i = 0; i < length; ++i)
    {
        if(nums.get(i) >= target)
            return i;
    }
    return length;
}

public int findInterIdex(List<Integer> nums, int target){
    return Collections.binarySearch(nums,target);
}

public static boolean useLoop(List<mFraInfo> arr, int targetValue) {
    for(mFraInfo s: arr){
        if(s.getmFra()== targetValue)
            return true;
    }
    return false;
}