equals() and hashCode() Not
Paired °Ë»ç´Â ºÎÇÕÇϴ ¦ÀÌ ¾øÀÌ ´ç½ÅÀÇ Äڵ忡¼ ¿À¹ö¶óÀ̵åµÈ equals()
¶Ç´Â hashCode() ¸Þ¼Òµå¸¦ ã°í ±×µéÀ» ÁöÀûÇÕ´Ï´Ù.
¸¸ÀÏ equals() and hashCode() not
paired üũ ¹Ú½º°¡ ¼±Åõǰí Inspection ÀÌ ¾î¶² ¹®Á¦¸¦ ã´Â´Ù¸é Inspection Åø À©µµ¿ì´Â ±×·± Ŭ·¡½º°¡ Ç¥ÁØ Collection ¿¡ Ãß°¡µÉ ¶§ ¹®Á¦¸¦ ¹ß»ý½ÃŰ´Â ¿À·ÎÁö ¸Þ¼Òµå ÁßÀÇ Çϳª¸¸ÀÌ ¿À¹ö¶óÀÌµå µÈ Å¬·¡½ºÀÇ ¸ñ·ÏÀ» Æ÷ÇÔÇÏ´Â equals() & hashCode() ÅÇÀ» Ç¥½ÃÇÕ´Ï´Ù.
°Ë»ç¿¡ ÀÇÇØ ¹ß°ßµÈ ¹®Á¦¸¦ À§ÇÑ ¾î¶² »çÀü Á¤ÀÇÀÇ ¼Ö·ç¼Çµµ ÀÖÁö ¾Ê½À´Ï´Ù.

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ÀÌ °Ë»ç´Â ¾î¶² ¿É¼Çµµ °¡ÁöÁö ¾Ê½À´Ï´Ù.
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´ÙÀ½ Ŭ·¡½º¸¦ °üÂûÇϽʽÿÀ:
public class AClass {
int aField_1;
MyAdapter myAdapter;
public boolean equals(Object o) {
if ( this == o)
return true ;
if (!(o instanceof AClass))
return false ;
final AClass aClass = (AClass) o;
if (aField_1 != aClass.aField_1)
return false ;
if (!myAdapter.equals(aClass.myAdapter))
return false ;
return true ;
}
}
Inspection ÀÌ AClass ¿¡ Àû¿ëµÇ°í ³ ÈÄ¿¡, ´ÙÀ½ÀÇ Åø À©µµ¿ì°¡ ³ªÅ¸³¯ °ÍÀÔ´Ï´Ù.

Inspection Àº equals() ¸Þ¼Òµå°¡ AClass ¿¡¼ ¾î¶² ÀÏÄ¡Çϰí ÀÖ´Â hashCode()µµ °¡ÁöÁö ¾Ê´Â °ÍÀ» ´ç½Å¿¡°Ô ¾Ë¸³´Ï´Ù.
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