更多JAVA程序设计试题
- 1下列选项中,不属于比较运算符的是
- 2下面哪种类型的文件可以在Java虚拟机中运行?
- 3若a和b均是整型变量并已正确赋值,正确的switch语句是
- 4ResultSetMetaData rsmd = rs.getMetaData()是什么意思?
- 5下列程序运行结果是( )interface InterfaceA{String s="good ";void f();}abstract class ClassA{abstract void g();}class ClassB extends ClassA implements InterfaceA{void g(){System.out.print(s);}public void f(){System.out.print(" "+s);}}public class E {public static void main(String[] args) {ClassA a=new ClassB();InterfaceA b=new ClassB();a.g();b.f();}}
- 6数据库的更新语句是?