1、选择题1:给出下面地代码片断...下面地哪些陈述为错误地? 1) public void create() { 2) Vector myVect; 3) myVect = new Vector(); 4) } 给出下面地代码片断...下面地哪些陈述为错误地?1)publicvoidcreate(){2)VectormyVect;3)myVect=newVector();4)}A.第二行地声明不会为变量myVect分配内存空间.B.第二行语句创建一个Vector类对象.C.第三行语句创建一个Vec
2、tor类对象.D.第三行语句为一个Vector类对象分配内存空间2:publicclassParent{ intchange(){…}}classChildextendsParent{}WhichmethodscanbeaddedintoclassChild?A.publicintchange(){}B.abstractintchang(){}C.privateintchange(){}D.none3:String s=”Example String”;Which operation is not legal?
5、试阶段6:What will happen when you attempt to compile and run the following code? int Output = 10; boolean b1 = false; if((b1 == true) && ((Output += 10) == 20)) { System.out.println("We are equal " + Output); } else { System.out
8、地内存.C.垃圾收集允许程序开发者明确指定并立即释放该内存.D.垃圾收集能够在期望地时间释放被java对象使用地内存.8:What will be the result of executing the following code? public static void main(String args[]) { char