[ÇóÖú]java longÓëLong±È½Ï - Java / Java SE
long l = 1; Long l1 = 1L; Long l2 = new Long(1); if (l == l1) { System.out.println("ok1"); } if(l1 == l2){ System.out.println("ok2"); } ÈçÉÏ´úÂ룬"ok1"¿ÉÒÔÀí½â£¬¶¼ÔÚÕ»À"ok2"ÓеãÒÉÎÊ£¬l2²»ÊÇÔÚ¶ÑÀïÂð£¬ÔõôҲÏàµÈÁË£¿ÇëÖ¸½Ì.
¸ß°æ±¾»·¾³ ×Ô¶¯²ð×°Ïä ÎÒÔËÐÐÁË£¬Ã»ÓдòÓ¡ok2 ѽ ÎÒ»¹ÒÔΪ»á²ðÏäÄØ LongµÄ±È½ÏÒªÓÃequalsÒýÓà long l = 1; Long l1 = 1L; Long l2 = new Long(1); if (l == l1) { System.out.println("ok1"); } if(l1 == l2){ System.out.println("ok2"); } ÈçÉÏ´úÂ룬"ok1"¿ÉÒÔÀí½â£¬¶¼ÔÚÕ»À"ok2"ÓеãÒÉÎÊ£¬l2²»ÊÇÔÚ¶ÑÀï¡¡ ²»ºÃÒâ˼£¬±ÊÎó long l = 1; Long l1 = 1L; Long l2 = new Long(1); if (l == l1) { System.out.println("ok1"); } if(l == l2){ System.out.println("ok2"); } Java code: long l = 1; Long l1 = 1L; Long l2 = new Long(1); if (l == l1) { System.out.println("ok1"); } if(l == l2){ System.out.println("ok2"); }
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