摘要:
首先请看下下面的这几个输出的结果,请仔细考虑,不要那么快回答!String str = new String("aaa");String str2 = new String("aaa");System.out.println(str == str2);System.out.println("----------------");String str3 = "bbb";String str4 = "bbb";System.out.println(str3 == str4); System.out. 阅读全文