operator.java

java编程百例

package ch01.section02;

public class Operator {
  private static void f(boolean b) {
    System.out.println(b);
  }

  public static void main(String[] args) {
    int x = 1;
    int y = 1;
    //运算优先级
    //单操作数运算符
    //算术运算符
    //移位运算符
    //比较运算符
    //逻辑运算符
    //条件运算符
    //赋值运算符

    x = x * y;
    x = x / y;
    x = x % y;
    x = x + y;
    x = x - y;
    x++;
    x--;
    x = +y;
    x = -y;
    // 比较运算符
    f(x > y);
    f(x >= y);
    f(x < y);
    f(x <= y);
    f(x == y);
    f(x != y);
    f(! (x > y));
    f( (x > y) && (x != y));
    f( (x > y) || (x > y));
    // 按位运算符
    x = ~y;
    x = x & y;
    x = x | y;
    x = x ^ y;
    //移位运算符
    x = x << 1;
    x = x >> 1;
    x = x >>> 1;
    x += y;
    x -= y;
    x *= y;
    x /= y;
    x %= y;
    x <<= 1;
    x >>= 1;
    x >>>= 1;
    x &= y;
    x ^= y;
    x |= y;
    System.out.println(x);
  }
}