单项选择题
public class TestApp{
public static void main(String[] args){
try{
int i = 0;
int j = 1 / i;
System.out.println(“1”);
}
catch(Exception e){
System.out.print(“3”);
}
finally{
System.out.print(“4”);
}
}
}
上述程序运行后的输出是哪项?()
A. 4
B. 34
C. 43
D. 14
点击查看答案&解析
相关考题
-
单项选择题
public class TestApp{ public static void main(String[] args){ try{ int i = 0; int j = 1 / i; String myname=null; if(myname.length()>2) System.out.print(“1”); }catch(NullPointerException e){ System.out.print(“2”); } catch(Exception e){ System.out.print(“3”); } } } 上述程序运行后的输出是哪项?()
A. 3
B. 2
C. 231
D. 32 -
单项选择题
public class TestApp{ public static void main(String[] args){ try{ String myname = null; if(myname.length()>2) System.out.print(“1”); }catch(NullPointerException e){ System.out.print(“2”); } } } 上述程序运行后的输出是哪项?()
A. 1
B. 12
C. 21
D. 2 -
单项选择题
现有: 1. class Book { 2. private final void read() { System.out.print("book "); } 3. } 4. class Page extends Book { 5. public static void main(String [] args) { 6. // insert code here 7. } 8. private final void read() { System.out.print("page "); } 9. } 和如下三个代码片段( x, y, z ): x. // just a comment y. new Page().read(); z. new Book().read(); 分别插入到第6行,有几个允许代码通过编译并可以运行且无异常?()
A. 0
B. 1
C. 2
D. 3
