在ArrayList add（）中插入09时出错？ [英] error while inserting 09 in ArrayList add()?

问题描述

你好

i尝试在我的ArrayList的add方法中插入09时有一个错误如何解决它

当我google for it它给我解决方案就像它的八进制不，我需要将这个变为十进制否

我该怎么做请任何人帮助我...

  import  java.util。*; 
  class  MyArrayList {
  public   static   void  main（ String  args []）{
 ArrayList al = new数组列表（）; 
 al.add（ new 整数（ 09 ））; 
 System.out.println（al）; 
} 
} 

< br /> 
输出： MyArrayList.java:5:error整数太大：09< br /> 

解决方案

正如已经告诉过你的那样，整数文字从零开始被视为具有八进制 base（并且，您知道，八进制数的允许数字是 {0,1,2,3,4， 5,6,7} ）。如果您需要将十进制 9 添加到ArrayList，则必须删除标题' 0 '，改变自

Quote：

al.add（new整数（09））;

到

 al.add（ new 整数（ 9 ））; 

hello
i have an error while trying to insert 09 in my ArrayList's add method how to resolve it
when i google for it its give me solution like its a octal no and i need to chage this to decimal no
how do i do this please any one help me ...

import java.util.*;
class MyArrayList{
   public static void main(String args[]){
        ArrayList al=new ArrayList();
        al.add(new Integer(09));
        System.out.println(al);
   }
}

<br />
output:MyArrayList.java:5:error integer too large:09<br />

解决方案

As have been already told to you, integer literals starting with zero are considered having octal base (and, you know, allowed digit of octal base are {0,1,2,3,4,5,6,7}). If you need to add the decimal 9 to the ArrayList then you have to remove the heading '0', that is change from

Quote:

al.add(new Integer(09));

to

al.add(new Integer(9));

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