appletester.java

来自「Java与面向对象程序设计实验教学讲义.复数类的实现,复数类的复杂运算,身份证号」· Java 代码 · 共 12 行

public class AppleTester {
   public static void main(String args[]) {
     Apple a = new Apple("red", true);
     Apple b = new Apple("red", true);
     System.out.println(a + " is equal to " + b + ": " + a.equals(b));
     System.out.println("a is identical to b: " + (a == b));
     Apple c = a;
     System.out.println(a + " is equal to " + c + ": " + a.equals(c));
     System.out.println("a is identical to c: " + (a == c));
     }
}