• 로그인 함 해보끄나?

  • Sarangnamu.net June 17, 2003
    Home Login Profile Study Open Project Q&A Google Code
    C++ 프로그래머 Java 맛보기 #10
    Last Modify : 13 January, 2011(01:11)
    다음은 연산자 이다. 그닥 볼것도 없으므로 소스로만 보자면 + additive operator (also used for String concatenation) - subtraction operator * multiplication operator / division operator % remainder operator class ArithmeticDemo {      public static void main (String[] args){                   int result = 1 + 2; // result is now 3          System.out.println(result);          result = result - 1; // result is now 2          System.out.println(result);          result = result * 2; // result is now 4          System.out.println(result);          result = result / 2; // result is now 2          System.out.println(result);          result = result + 8; // result is now 10          result = result % 7; // result is now 3          System.out.println(result);      } } class ConcatDemo {      public static void main(String[] args){          String firstString = "This is";          String secondString = " a concatenated string.";          String thirdString = firstString+secondString;          System.out.println(thirdString);      } } + Unary plus operator; indicates positive value (numbers are positive without this, however) - Unary minus operator; negates an expression ++ Increment operator; increments a value by 1 --     Decrement operator; decrements a value by 1 !     Logical complement operator; inverts the value of a boolean class UnaryDemo {      public static void main(String[] args){          int result = +1; // result is now 1          System.out.println(result);          result--; // result is now 0          System.out.println(result);          result++; // result is now 1          System.out.println(result);          result = -result; // result is now -1          System.out.println(result);          boolean success = false;          System.out.println(success); // false          System.out.println(!success); // true      } } class PrePostDemo {      public static void main(String[] args){          int i = 3; i++; System.out.println(i); // "4" ++i;     System.out.println(i); // "5" System.out.println(++i); // "6" System.out.println(i++); // "6" System.out.println(i); // "7"      } } == equal to != not equal to > greater than >= greater than or equal to < less than <= less than or equal to class ComparisonDemo {      public static void main(String[] args){          int value1 = 1;          int value2 = 2;          if(value1 == value2) System.out.println("value1 == value2");          if(value1 != value2) System.out.println("value1 != value2");          if(value1 > value2) System.out.println("value1 > value2");          if(value1 < value2) System.out.println("value1 < value2");          if(value1 <= value2) System.out.println("value1 <= value2");      } }

    Comment


    입력하3 1508772482



    Locations of visitors to this page