已知有下面类的说明: public class X5_1_1 extends x{
private float f =10.6f; int i=16; static int si=10; public static void main(String[] args) {
X5_1_1 x=new
}
}
X5_1_1(); 在 main()方法中,下面哪条语句的用法是正确的?( )
①x.f
②this.si
③X5_1_1.i
④X5_1_1.f
参考答案:
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相关题目
【单选题】
下列程序的运行结果是( ) 。 public class X5_1_2 extends x{
int ab()
{
static int aa=10; aa++; System.out.println(aa);
}
public static void main(String[] args) {
X5_1_2 x=new X5_1_2(); x.ab();
}
}
【单选题】
运行下面程序时,会产生什么异常?( ) public class X7_1_5 {
public static void main(String[] args) {
int[] z = {
1,2,3,4
}
; int p = z[4]; int x = 0; int y = 5/x;
}
}
【单选题】
运行下面程序时,会产生什么异常?( ) public class X7_1_4 {
public static void main(String[] args) {
int x = 0; int y = 5/x; int[] z = {
1,2,3,4
}
; int p = z[4];
}
}
【单选题】
下面代码运行后的输出结果为( ) 。 public class X6_1_5 {
public static void main(String[] args) {
AB aa = new AB(); AB bb; bb = aa; System.out.println(b@@equals(aa));
}
}
class AB{
int x = 100;
}
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