<< Chapter < Page Chapter >> Page >

Question 15

Write the program described in Listing 13.

Listing 13 . Question 15.
/*File Ap0010e1.java Copyright 2012, R.G.Baldwin Instructions to student:This program refuses to compile without errors. Make the necessary corrections to cause the program tocompile and run successfully to produce an output similar to that shown below. Note that the values should bedifferent each time the program is run.-1.30240579E8 -1.30240579E8**********************************************************/ //Student is not expected to understand import directives// at this point. import java.util.Random;import java.util.Date; public class Ap0010e1{public static void main(String args[]){//Create a random number for testing. Student is not // expected to understand how this works at this point.Random random = new Random(new Date().getTime()); double doubleVar = random.nextInt()/1.0;//Student should understand the following double var = doubleVar;System.out.println(doubleVar); new Worker().doIt(doubleVar);}//end main() }//end class definition//=======================================================// class Worker{public void doIt(double val){ int var = val;System.out.println(var); }//end doIt()}//end class definition //=======================================================//

Question 16

Write the program described in Listing 14 .

Listing 14 . Question 16.
/*File Ap0010f1.java Copyright 2012, R.G.Baldwin Instructions to student:Beginning with the code shown below, modify the code in the method named doIt so that the programdisplays 3.3333333333333335 instead of 3Then modify the method again so that the program displays 3.3333333 instead of 3**********************************************************/ public class Ap0010f1{public static void main(String args[]){new Worker().doIt(); }//end main()}//end class definition //=======================================================//class Worker{ public void doIt(){System.out.println(10/3); }//end doIt()}//end class definition //=======================================================//

Question 17

Write the program described in Listing 15 .

Listing 15 . Question 17.
/*File Ap0010g1.java Copyright 2012, R.G.Baldwin Instructions to student:Beginning with the code shown below, modify the code in the method named doIt so that the programdisplays 2048 instead of 2730Did you notice anything particularly interesting about the values involved?**********************************************************/ public class Ap0010g1{public static void main(String args[]){new Worker().doIt(16384); }//end main()}//end class definition //=======================================================//class Worker{ public void doIt(int val){System.out.println(val/6); }//end doIt()}//end class definition //=======================================================//

Question 18

Write the program described in Listing 16 .

Listing 16 . Question 18.
/*File Ap0010h1.java Copyright 2012, R.G.Baldwin Instructions to student:This program refuses to compile without errors. Make the necessary corrections to cause the program tocompile and run successfully to produce the output shown below:false **********************************************************/public class Ap0010h1{ public static void main(String args[]){ new Worker().doIt();}//end main() }//end class definition//=======================================================// class Worker{public void doIt(){ boolean var;System.out.println(var); }//end doIt()}//end class definition //=======================================================//

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, Object-oriented programming (oop) with java. OpenStax CNX. Jun 29, 2016 Download for free at https://legacy.cnx.org/content/col11441/1.201
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Object-oriented programming (oop) with java' conversation and receive update notifications?

Ask