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NullPointExceptionÀº java·Î programmingÇÏ´Â
programmer°¡ °¡Àå ¸¹ÀÌ °Þ´Â ¹®Á¦ ÀÏÁöµµ ¸ð¸£°Ú½À´Ï´Ù. ÀÌ´Â ´ÙÀ½°ú °°ÀÌ À̸§¸¸ Á¤ÀÇÇÏ°í ½ÇÁ¦ °´Ã¼¸¦ »ý¼º½ÃÅ°Áöµµ ¾Ê°í »ç¿ëÇÏ·Á ÇÒ¶§ ¹ß»ýÇÏ´Â errorÀÔ´Ï´Ù.
class Main{
public static void main(String args[]){
Person äÀÏ;
äÀÏ.°É¾î¶ó();//À̶§ NullPointExceptionÀÌ ¹ß»ý
....
}
}
public class Person{
...
public void °É¾î¶ó(){
....
}
...
}
ÀÌ·±°æ¿ì´Â Error°¡ ¹ß»ýÇÑ ºÎºÐÀ» Á¤È®È÷ ã¾Æ¼ °´Ã¼¸¦ »ý¼º½ÃŲÈÄ method¸¦ È£ÃâÇØÁÖ¾î¾ß Á¤È®ÇÑ programÀÌ µÉ°Í °°±º¿ä.