java中/與%的區別


System.out.println(3/5)  = 0;
System.out.println(2/5)  = 0;
System.out.println(4/5)  = 0;


System.out.println(6/5)  = 1;
System.out.println(7/5)  = 1;
System.out.println(8/5)  = 1;
System.out.println(11/5)  = 2;
System.out.println(12/5)  = 2;
System.out.println(13/5)  = 2;

  結果等於得到的整數(商的整數)

 

System.out.println(17%5) = 2;
System.out.println(16%5) = 1;
System.out.println(13%5) = 3;
System.out.println(8%5) = 3;
System.out.println(7%5) = 2;

  結果等於余數(剩余多少)

System.out.println(2%5) = 2;
System.out.println(7%8) = 7;
System.out.println(6%8) = 6;

  取余(取模)有個規律就是:左邊小於右邊,結果為左邊,左邊大於右邊,看余數


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