How I can delete the first number In an Order List using Array List with Java

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I have an "OrderList"
and I need to delete the first number

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C#

public void delFirst() { //??????? } public void delLast() { if (!isEmpty()) { size--; } }

Posted 26-Oct-14 10:54am

Ehab Younis Obaid

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Maciej Los 26-Oct-14 17:13pm

list.remove(0);

2 solutions

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Garth J Lancaster · Answer 1 · 2014-10-26T12:03:00

Solution 1

stop cross/multiple posting ! post once, in one forum please

Posted 26-Oct-14 12:03pm

Garth J Lancaster

Xiao Ling · Answer 2 · 2014-10-26T20:14:00

Solution 2

You can remove elements by index. For example:

XML

ArrayList<String> list = new ArrayList<String>();
int size = list.size();
int firstIndex = 0;
int lastIndex = size - 1;
list.remove(firstIndex);
list.remove(lastIndex);

Posted 26-Oct-14 20:14pm

Xiao Ling