package operator; public class Demo5 { public static void main(String[] args) { //与 或 非 boolean a = true ; boolean b = false ; System.out.println("a&&b:"+(a&&b)); System.out.println("a||b:"+(a||b)); System.out.println("!(a&&b):"+(!(a&&b))); //短路运算 System.out.println("================"); int c = 5; boolean d = (c<4)&&(c++<10); System.out.println(d); System.out.println(c); } }