<dfn id="w48us"></dfn><ul id="w48us"></ul>
  • <ul id="w48us"></ul>
  • <del id="w48us"></del>
    <ul id="w48us"></ul>
  • 思遷數碼科技招聘Java軟件工程師筆試真題

    時間:2020-12-14 10:03:34 筆試題目 我要投稿

    思遷數碼科技招聘Java軟件工程師筆試真題

      選擇題

    思遷數碼科技招聘Java軟件工程師筆試真題

      1:Which statements about Java code security are not true?

      A.The bytecode verifier loads all classes needed for the execution of a program.

      B.Executing code is performed by the runtime interpreter.

      C.At runtime the bytecodes are loaded, checked and run in an interpreter.

      D.The class loader adds security by separating the namespaces for the classes of the local file system from those imported from network sources.

      2:What is the result when you compile and run the following code?

      public class Test

      {

      public void method()

      {

      for(int i = 0; i < 3; i++)

      {

      System.out.print(i);

      }

      System.out.print(i);

      }

      }

      Choices:

      What is the result when you compile and run the following code?

      public class Test

      {

      public void method()

      {

      for(int i = 0; i < 3; i++)

      {

      System.out.print(i);

      }

      System.out.print(i);

      }

      }

      Choices:

      A.0122

      B.0123

      C.Compilation error

      D.None of these

      3:

      Give the following code:

      public class Example{

      public static void main(String args[] ){

      int l=0;

      do{

      System.out.println(“Doing it for l is:”+l);

      }while(--l>0)

      System.out.println(“Finish”);

      }

      }

      Which well be output:

      Give the following code:

      public class Example{

      public static void main(String args[] ){

      int l=0;

      do{

      System.out.println(“Doing it for l is:”+l);

      }while(--l>0)

      System.out.println(“Finish”);

      }

      }

      Which well be output:

      A.Doing it for l is 3

      B.Doing it for l is 1

      C.Doing it for l is 2

      D.Doing it for l is 0

      4:Math.round(11.5)等於多少?

      A.11

      B.12

      C.11.5

      D.none

      5:

      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.println("Not equal! " + Output);

      }

      Choices:

      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.println("Not equal! " + Output);

      }

      Choices:

      A.Compilation error, attempting to perform binary comparison on logical data type

      B.Compilation and output of "We are equal 10".

      C.Compilation and output of "Not equal! 20".

      D.Compilation and output of "Not equal! 10".

      6:

      What will happen when you attempt to compile and run the following code?

      (Assume that the code is compiled and run with assertions enabled.)

      public class AssertTest{

      public void methodA(int i){

      assert i >= 0 : methodB();

      System.out.println(i);

      }

      public void methodB(){

      System.out.println("The value must not be negative");

      }

      public static void main(String args[]){

      AssertTest test = new AssertTest();

      test.methodA(-10);

      }

      }

      What will happen when you attempt to compile and run the following code?

      (Assume that the code is compiled and run with assertions enabled.)

      public class AssertTest{

      public void methodA(int i){

      assert i >= 0 : methodB();

      System.out.println(i);

      }

      public void methodB(){

      System.out.println("The value must not be negative");

      }

      public static void main(String args[]){

      AssertTest test = new AssertTest();

      test.methodA(-10);

      }

      }

      A.it will print -10

      B.it will result in AssertionError showing the message-“the value must not be negative”.

      C.the code will not compile.

      D.None of these.

      7:

      What is the result when you compile and run the following code?

      public class ThrowsDemo

      {

      static void throwMethod()

      {

      System.out.println("Inside throwMethod.");

      throw new IllegalAccessException("demo");

      }

      public static void main(String args[])

      {

      try

      {

      throwMethod();

      }

      catch (IllegalAccessException e)

      {

      System.out.println("Caught " + e);

      }

      }

      }

      Choices:

      What is the result when you compile and run the following code?

      public class ThrowsDemo

      {

      static void throwMethod()

      {

      System.out.println("Inside throwMethod.");

      throw new IllegalAccessException("demo");

      }

      public static void main(String args[])

      {

      try

      {

      throwMethod();

      }

      catch (IllegalAccessException e)

      {

      System.out.println("Caught " + e);

      }

      }

      }

      Choices:

      A.Compilation error

      B.Runtime error

      C.Compile successfully, nothing is printed.

      D.Inside throwMethod. followed by caught:java.lang.IllegalAccessExcption: demo

      8:假定a和b為int型變量,則執行下述語句組后,b的值為

      a=1;

      b=10;

      do

      {

      b-=a;

      a++;

      } while (b--<0);

      A.9

      B.-2

      C.-1

      D.8

      9:

      public class X{

      public Object m(){

      Object o = new Float(3.14F);//line 3

      Object [] oa = new Object[1];//line 4

      oa[0] = o;//line 5

      o=null;//line 6

      return oa[0];//line 7

      }

      }

      When is the Float object, created in line 3,eligible for garbage collection?

      public class X{

      public Object m(){

      Object o = new Float(3.14F);//line 3

      Object [] oa = new Object[1];//line 4

      oa[0] = o;//line 5

      o=null;//line 6

      return oa[0];//line 7

      }

      }

      When is the Float object, created in line 3,eligible for garbage collection?

      A.just after line 5.

      B.just after line 6

      C.just after line 7(that is,as the method returns)

      D.never in this method

      10:Math.round(-11.5)等於多少?

      A.-11

      B.-12

      C.-11.5

      D.none

      11:In the following pieces of code, which one will compile without any error?

      A.StringBuffer sb1 = "abcd";

      B.Boolean b = new Boolean("abcd");

      C.C: byte b = 255;

      D.float fl = 1.2;

      12:

      Give the following method:

      public void method( ){

      String a,b;

      a=new String(“hello world”);

      b=new String(“game over”);

      System.out.println(a+b+”ok”);

      a=null;

      a=b;

      System.out.println(a);

      }

      In the absence of compiler optimization, which is the earliest point the object a refered is definitely elibile to be garbage collection.

      Give the following method:

      public void method( ){

      String a,b;

      a=new String(“hello world”);

      b=new String(“game over”);

      System.out.println(a+b+”ok”);

      a=null;

      a=b;

      System.out.println(a);

      }

      In the absence of compiler optimization, which is the earliest point the object a refered is definitely elibile to be garbage collection.

      A.before line 5

      B.before line 6

      C.before line 7

      D.before line 9

      13:

      Give the following java class:

      public class Example{

      static int x[]=new int[15];

      public static void main(String args[]){

      System.out.println(x[5]);

      }

      }

      Which statement is corrected?

      Give the following java class:

      public class Example{

      static int x[]=new int[15];

      public static void main(String args[]){

      System.out.println(x[5]);

      }

      }

      Which statement is corrected?

      A.When compile, some error will occur.

      B.When run, some error will occur.

      C.Output is zero.

      D.Output is null.

      14:以下的C程序代碼片段運行后C和d的值分別是多少

      Int a =1,b =2;

      Int c,d;

      c =(a&b)&&a;

      d =(a&&b)&a;

      A.0,0

      B.0,1

      C.1,0

      D.1,1

      簡答題

      15:15個教徒和15 個非教徒在深海上遇險,必須將一半的人投入海中,其余的人才能幸免于難,于是想了一個辦法:30個人圍成一圓圈,從第一個人開始依次報數,每數到第九個人就將他扔入大海,如此循環進行直到僅余15個人為止。問怎樣排法,才能使每次投入大海的都是非教徒。

      16:構造器Constructor是否可被override?

      17:簡單介紹一下IOC的實現原理。(寫出代碼最好)

      18:說出數據連接池的.工作機制是什么?

      19:列出一些控制流程的方法;

      20:找出兩個字符串中最大子字符串,如"abractyeyt","dgdsaeactyey"的最大子串為"actyet"

      21:請寫一個java程序實現數據庫緩沖池的功能?

      22:Tomcat里實現會話session復制,有那些方法?

      23:簡單介紹JSP的標記庫?

      24:hibernate的2級緩存有那些緩存策略?每種緩存策略的使用范圍?

      25:不用乘法或加法給一個數增加7倍。

    【思遷數碼科技招聘Java軟件工程師筆試真題】相關文章:

    用友JAVA筆試真題07-24

    沃爾瑪招聘筆試真題分享12-26

    雀巢校園招聘往屆筆試真題11-21

    軟件開發工程師JAVA筆試題10-15

    平安銀行校園招聘筆試真題結構04-03

    最新中興Java語言筆試真題及答案09-24

    Java招聘筆試題目03-03

    Java軟件開發工程師筆試題寶典10-15

    JAVA類軟件研發工程師筆試題目03-04

    華為招聘程序員筆試真題分享07-15

    主站蜘蛛池模板: 免费观看四虎精品成人| 最新国产在线精品观看| 人妻少妇精品久久| 久久夜色精品国产亚洲| 亚洲精品无码久久久久AV麻豆| 大胸国产精品视频| 91麻豆精品国产自产在线观看亚洲| 中文字幕久久精品| 久久精品国产精品亚洲下载 | 国产精品一久久香蕉国产线看| 亚洲av日韩av天堂影片精品| 精品国产一区二区三区在线观看| 欧美精品亚洲精品日韩1818| 69久久夜色精品国产69| 日韩精品区一区二区三VR| 亚洲国产成人精品女人久久久 | 精品久久久久久久中文字幕| 久久久精品免费国产四虎| 97热久久免费频精品99| 国产精品亚韩精品无码a在线| 人妻精品久久久久中文字幕一冢本| 亚洲性日韩精品国产一区二区 | 亚洲AV永久无码精品成人| 亚洲日韩欧美制服精品二区| 野狼精品社区| 亚洲精品乱码久久久久66| 亚洲永久精品ww47| 无码精品视频一区二区三区| 色久综合网精品一区二区| 精品一区二区三区在线成人| 精品熟女少妇av免费久久| 人妻少妇乱子伦精品| 日韩精品无码一区二区中文字幕 | 无码人妻精品一区二区三区夜夜嗨 | 精品日本一区二区三区在线观看| 国产精品九九九| 国产亚洲精品a在线观看| 国产午夜精品一区二区三区不卡| 国产午夜精品一区二区| 久久se这里只有精品| 欧美精品一区二区三区免费|