摘要：
Integer int1 = 30; Integer int2 = 30; Integer int3 = 0; System.out.println(int1 == int2); System.out.println(int1 == int2 + int3); Integer int4 = new Integer(30); Integer int5 = new Integer(30); Integer int6 = new Integer(0); System.out.println(int4 == int5); System.out.println(int4 == int5 + int6); 阅读全文
