関連ワード:  how to get first element from arraylist in java    how to get first value from arraylist in java    how to remove first element from arraylist in java    how to get first and last element of arraylist in java    how to remove one element from arraylist in java    how to remove first two elements from arraylist in java    arraylist get first element    arraylist remove first element  
結果 : how to get first element from arraylist in java