equivalence.java

来自「Thinking in JAVA第四版源代码」· Java 代码 · 共 14 行

//: operators/Equivalence.java

public class Equivalence {
  public static void main(String[] args) {
    Integer n1 = new Integer(47);
    Integer n2 = new Integer(47);
    System.out.println(n1 == n2);
    System.out.println(n1 != n2);
  }
} /* Output:
false
true
*///:~