MIS 260 Practice - week 6

1.      Analyze below program and then answer for questions.

            public class Practice1

            {

                        public static void main ( String[] args )

                        {

                        String str;

                        int value;

                        str = new String( "MIS" );

                        value = 77;

            System.out.println( str );

            System.out.println( value );

                        }

            }

·        How many objects were created?

·        What is/are (an) object(s) variable name?

·        What are the differences between str variable and value variable?

·        What are the outcome of this program?

2.      Analyze below program and then answer for questions.

            public class Practice2

            {

                        public static void main ( String[] args )

                        {         

                        String str;

                        str = new String("MIS");

                        System.out.println(str);

                        str = new String("Java class");  

                        System.out.println(str);

                        }

            }

·        How many objects were created?

·        What is/are (an) object(s) variable name?

·        What are the differences between first str variable and second str variable?

·        What are the outcome of this program?

3.    Apply concept of external input data (chap 10, 21, and 22) to practice 3 programs.

Java Assignment 5: (Turn in by email – attach the program)

Due: will be announced by instructor

Score: 10 points

1. Modify and complete the assignment #3 (Siblings.java) program using the oncept of external input data (chap 10, 21, and 22)

2. Analyze below program and then answer for questions.

            public class Prctice3

            {

                   public static void main ( String[] args )

                        {

                     String strA;

                     String strB;

                        strA = new String( "MIS" );

                        strB = new String( "Java" );

                        System.out.println( strB );

                        System.out.println( strA );

                if ( strA == strB )
                      System.out.println( "This will NOT print.");

                        }

            }

1. How many objects were created?

2. What is/are (an) object(s) variable name?

3. What are the differences between strA variable and strB variable?

4. What are the outcomes of this program?