Given the following code：     public class Person{ static int arr[] = new int[10]；  public static void main（String a[]） {     System.out.println（arr[1]；）     }     }  Which statement is correct？（）   

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  A . df = new DateFormat(); B . df = Date.getFormat(); C . df = date.getFormat(); D . df = DateFormat.getFormat(); E . df = DateFormat.getInstance()

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• Given： https://assets.asklib.com/images/image2/2018080111400650032.png Which two， inserted at line 11， will allow the code to compile？（）

  A . public&ensp；class&ensp；MinMax<；？>；&ensp；{ B . public&ensp；class&ensp；MinMax<；？extends&ensp；Number>；&ensp；{ C . public&ensp；class&ensp；MinMax<；Nextends&ensp；Object>；&ensp；{ D . public&ensp；class&ensp；MinMax<；Nextends&ensp；Number>；&ensp；{ E . public&ensp；class&ensp；MinMax<；？extends&ensp；Object>；&ensp；{ F . public&ensp；class&ensp；MinMax<；Nextends&ensp；Integer>；&ensp；{

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• Given: https://assets.asklib.com/images/image2/201808020931223037.jpg Which two, inserted at line 11, will allow the code to compile?（）

  A . public class MinMax<?> { B . public class MinMax<? extends Number> { C . public class MinMax<N extends Object> { D . public class MinMax<N extends Number> { E . public class MinMax<? extends Object> { F . public class MinMax<N extends Integer> {

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• Given: https://assets.asklib.com/images/image2/2018080210345322330.jpg Under which three circumstances will the code on line 37 be executed?（）

  A . The instance gets garbage collected. B . The code on line 33 throws an exception. C . The code on line 35 throws an exception. D . The code on line 31 throws an exception. E . The code on line 33 executes successfully.

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• Given： https://assets.asklib.com/images/image2/2018080110460113518.png Under which three circumstances will the code on line 37 be executed？（）

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• Given the following code fragment：     public void create（） {     Vector myVect；     myVect = new Vector（）；      }  Which of the following statements are true？（） 

  A .  The declaration on line 2 does not allocate memory space for the variable myVect. B .  The declaration on line 2 allocates memory space for a reference to a Vector object. C .  The statement on line 2 creates an object of class Vector. D .  The statement on line 3 creates an object of class Vector. E .  The statement on line 3 allocates memory space for an object of class Vector.

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• Which statements are true， given the code new FileOutputStream（"data"， true） for creating an object of class FileOutputStream？（）  

  A . FileOutputStream has no constructors matching the given arguments. B . An IOExeception will be thrown if a file named "data" already exists. C . An IOExeception will be thrown if a file named "data" does not already exist. D . If a file named "data" exists， its contents will be reset and overwritten. E . If a file named "data" exists， output will be appended to its current contents.

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• Given： https://assets.asklib.com/images/image2/2018080109575355226.png Which code， inserted at line 14， allows the Sprite class to compile？（）

  A . Direction d = NORTH； B . Nav.Direction d = NORTH； C . Direction d = Direction.NORTH； D . Nav.Direction d = Nav.Direction.NORTH；

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• Given： https://assets.asklib.com/images/image2/2018080114103736681.png Which code fragment， inserted at line 23， allows the code to compile？（）

  A . df = new DateFormat（）； B . df = Date.getFormat（）； C . df = date.getFormat（）； D . df = DateFormat.getFormat（）； E . df = DateFormat.getInstance（）；

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• You executed the following code：   BACKUP VALIDATE DATABASE；   BLOCKRECOVER CORRUPTION LIST；  What will be the result of executing the above code？（）  

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• Which of the following about ISM Code is not right?（）

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• Given the following class， which statements can be inserted at position 1 without causing the code to fail compilation？（）   public class Q6db8 {   int a；   int b = 0；   static int c；   public void m（） {   int d；   int e = 0；   // Position 1   }   } 

  A . a++； B . b++； C . c++； D . d++； E . e++；

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• Given: https://assets.asklib.com/images/image2/2018080115533690970.jpg Which code, inserted at line 15, allows the class Sprite to compile?（）

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• Given the following code：     public class Person{     int arr[] = new int[10]；  public static void main（String a[]） {     System.out.println（arr[1]）；     }     }  Which statement is correct？（） 

  A .  When compilation some error will occur. B .  It is correct when compilation but will cause error when running. C .  The output is zero. D .  The output is null.

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• Given that login.getName（） returns a java.lang.String value and given the JSP code：  Welcome Which is equivalent？（）

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• Given the following code：     if （x>0） {  System.out.println（"first"）；  }     else if （x>-3） {  System.out.println（"second"）；  }     else {  System.out.println（"third"）；  }  Which range of x value would print the string "second"？（）    

  A .  x > 0 B .  x > -3 C .  x <= -3 D .  x <= 0 & x > -3

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• Given the HttpServlet code：   getServletContext（）.setAttribute（“foo”， “value”）； What is the result？（）

  A .  The attribute foo is placed in the application B .  A ServletContextListener registered for that servlet is notified C .  A ServletAttributeListener registered for that servlet is notified D .  An HttpSessionAttributeListener registered for that servlet is notified

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• Given： https://assets.asklib.com/images/image2/2018080116332893969.png Which code fragment， inserted at the end of line 12， produces the output p is 420？（）

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• Given that Thing is a class， how many objects and reference variables are created by the following code？（）   Thing item， stuff；   item = new Thing（）；   Thing entity = new Thing（）；

  A . One object is created B . Two objects are created C . Three objects are created D . One reference variable is created E . Two reference variables are created F . Three reference variables are created.

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• 2. All the following are the objectives of ISM code except ______.

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• Given the following code: 1)clss Person { 2) public void printVlue（） ; 11)} 12)} Which method will the sttement on line 10 cll on line 2 B．on line 3 C．on line 6 D．on line 7

  A．on line 2 B．on line 3 C．on line 6 D．on line 7

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• Given:What is the result when the programmer attempts to compile the code and run it with the command java Converter 12？（）

  <img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/047d6bd4894fe3060c1d5c6a923e9029.jpg' /> A. It is true that j==i. B. It is false that j==i. C. An exception is thrown at runtime. D. Compilation fails because of an error in line 13.

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• In the following code, Integer.parseInt（） + 5;

  A．a value-returning method B．a void method C．a local variable D．a complex method

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