関連ワード:  java convert list integer to array    how to convert list integer to array    java convert list to int array    java convert list integer to int array    how to convert list to integer array in python    how to convert list to int array    how to convert list integer to int array    how to convert list of integer to int array in c#    convert list to int array java 8    how to convert list list integer to 2d array in java