/* ·ÖÖ§½á¹¹1£ºif-elseÌõ¼þÅжϽṹ 1. ¸ñʽ ¸ñʽ1£º if(Ìõ¼þ±í´ïʽ)£û Óï¾ä¿é; £ý ¸ñʽ2£º"¶þÑ¡Ò»" if(Ìõ¼þ±í´ïʽ) { Óï¾ä¿é1; }else{ Óï¾ä¿é2; } ¸ñʽ3£º"¶àÑ¡Ò»" if (Ìõ¼þ±í´ïʽ1) { Óï¾ä¿é1; } else if (Ìõ¼þ±í´ïʽ2) { Óï¾ä¿é2; } ... }else if (Ìõ¼þ±í´ïʽn) { Óï¾ä¿én; } else { Óï¾ä¿én+1; } */ class IfElseTest { public static void main(String[] args) { /* °¸Àý1£º³ÉÄêÈËÐÄÂʵÄÕý³£·¶Î§ÊÇÿ·ÖÖÓ60-100´Î¡£Ìå¼ìʱ£¬ Èç¹ûÐÄÂʲ»ÔÚ´Ë·¶Î§ÄÚ£¬ÔòÌáʾÐèÒª×ö½øÒ»²½µÄ¼ì²é¡£ */ int heartBeats = 89; //´íÎóµÄд·¨£ºif(60 <= heartBeats <= 100){ if(heartBeats < 60 || heartBeats > 100){ System.out.println("ÄãÐèÒª×ö½øÒ»²½µÄ¼ì²é"); } System.out.println("Ìå¼ì½áÊø"); //********************************** /* °¸Àý2£º¶¨ÒåÒ»¸öÕûÊý£¬Åж¨ÊÇżÊý»¹ÊÇÆæÊý */ int num = 13; if(num % 2 == 0){ System.out.println(num + "ÊÇżÊý"); }else{ System.out.println(num + "ÊÇÆæÊý"); } } }