精品国产一级毛片大全,毛片一级在线,毛片免费观看的视频在线,午夜毛片福利

最新軟通動力java筆試題目

  一、選擇題

  1、下面哪些是java語言中的關(guān)鍵字? A sizeof B abstract C NULL D Native 答:B

  2、下面語句哪個是正確的? A char='abc'; B long l=oxfff; C float f=0.23; D double=0.7E-3; 答:D

  3、以下程序測試String 類的各種構(gòu)造方法,試選出其運行效果。

  public class abc {

  public static void main(String args[]){

  String s1=new String();

  String s2=new String("String 2");

  char chars[]={'a',' ','s','t','r','i','n','g'};

  String s3=new String(chars);

  String s4=new String(chars,2,6);

  byte bytes[]={0,1,2,3,4,5,6,7,8,9};

  StringBuffer sb = new StringBuffer(s3);

  String s5=new String(sb);

  System.out.println("The String No.1 is "+s1);

  System.out.println("The String No.2 is "+s2);

  System.out.println("The String No.3 is "+s3);

  System.out.println("The String No.4 is "+s4);

  System.out.println("The String No.5 is "+s5);

  }

  }

  A The String No.1 is

  The String No.2 is String 2

  The String No.3 is a string

  The String No.4 is string

  The String No.5 is a string

  B The String No.1 is  The String No.2 is String 2  The String No.3 is a string

  The String No.4 is tring  The String No.5 is a string

  C The String No.1 is  The String No.2 is String 2  The String No.3 is a string

  The String No.4 is strin  The String No.5 is a string

  D 以上都不對

  答:A

  4、下面語句段的輸出結(jié)果是什么?

  inti = 9; switch (i) {

  default: System.out.println("default");

  case 0: System.out.println("zero"); break;

  case 1: System.out.println("one");

  case 2: System.out.println("two"); }

  A default

  B default, zero

  C error default clause not defined

  D no output displayed

  答:B

  二、不定項選擇題(在每小題的五個備選答案中選出正確答案,并將正確答案的序號填入題干后面的括號內(nèi),錯選多選,漏選均不得分。)

  1、給出如下代碼:

  class Test{ private int m; public static void fun() { // some code... } } 如何使成員變量m 被函數(shù)fun()直接訪問?

  A、將private int m 改為protected int m B、將private int m 改為 public int m

  C、將private int m 改為 static int m D、將private int m 改為int m

  答: C

  2、下面哪幾個函數(shù)是public void example(){...}的重載函數(shù)?

  A、 public void example( int m){...} B、public int example(){...}

  C、public void example2(){...} D、 public int example ( int m, float f){...}

  答: A,D

本文已影響6827
上一篇:企業(yè)招聘java筆試題 下一篇:JAVA和數(shù)據(jù)庫筆試題

相關(guān)文章推薦

|||||