摘要：前置递增 ++a后置递增 a++总之记住加号在前则先加就是了。 阅读全文

摘要：310-025 Leading the way in IT testing and certification tools,QUESTION NO: 92 Given: 1. String foo = “blue”; 2. Boolean[]bar = new Boolean [1]; 3. if (bar[0]) { 4. foo = “green”; 5. } What is the result? A. Foo has the value of “” B. Foo has the value of null. C. Foo has the value of “blue” D. Foo h 阅读全文