自动拆箱装箱
2020-06-17 本文已影响0人
撸代码的大白
Double i1 =100.0;
Double i2 =100.0;
Double i3 =200.0;
Double i4 =200.0;
System.out.println(i1==i2);
System.out.println(i3==i4);
Integer a =1;
Integer b =2;
Integer c =3;
Integer d =3;
Integer e =321;
Integer f =321;
Long g =3L;
Long h =2L;
System.out.println(c==d);
System.out.println(e==f);
System.out.println(c==(a+b));
System.out.println(c.equals(a+b));
System.out.println(g==(a+b));
System.out.println(g.equals(a+b));
System.out.println(g.equals(a+h));
