读程序,下面的哪些表达式可以加入printValue()方法的“//同父类中…”部分,并满足注释中的要求? class Person { String name,department; public void printValue(){ System.out.println(""name is ""+name); System.out.println(""department is ""+department); } } public class Teacher extends Person { int salary; public void printValue(){ //同父类中printValue()方法的内容,需要显示name和 department的值。 System.out.println(""salary is ""+salary); } }