Java将一个集合拆分为指定个数的小集合

Java将一个集合拆分为指定个数的小集合

public static <T> List<List<T>> partitionList(List<T> source, int subListNumber) {
    
    
    List<List<T>> result = new ArrayList<>();
    int remainder = source.size() % subListNumber;
    int number = source.size() / subListNumber;
    int offset = 0;
    for (int i = 0; i < subListNumber; i++) {
    
    
        List<T> value;
        if (remainder > 0) {
    
    
            value = source.subList(i * number + offset, (i + 1) * number + offset + 1);
            remainder--;
            offset++;
        } else {
    
    
            value = source.subList(i * number + offset, (i + 1) * number + offset);
        }
        result.add(value);
    }
    return result;
}