Part AExplain why access modifiers are necessary for any class b.docx
- 1. Part A Explain why access modifiers are necessary for any class being defined. Include an example to further your input on this topic. Part B 1. What can you say about the name of a class? It must start with an uppercase letter. The convention is to start with an uppercase letter. 2. What can you say about the name of constructors? They must be the same name as the class name. They can be any name, just like other methods. 3. What is a constructor’s return type? void Object The class name A constructor does not have a return type. 4. It is legal to have more than one constructor in a given class. true false 47. In the main method of the class GradeClient, you have coded When you compile, you get the following message: Explain what the problem is and how to fix it. 48. In the main method of the class GradeClient, you have coded When you compile, you get the following message: Explain what the problem is and how to fix it.
- 2. Part C QUESTION 1 A double is more precise than a float. True False QUESTION 2 char is a valid identifier. True False QUESTION 3 Which one of these is not a primitive data type? _________________ . int double bool long char QUESTION 4 The two floating point data types are _____ and _____ QUESTION 5 String literals are surrounded by _____ quotes
- 3. QUESTION 6 By convention, method names, instance variables and object names start with a lowercase letter. True False QUESTION 7 When an object reference is first declared, its value is null. True False QUESTION 8 By convention, class names start with a capital letter. True False QUESTION 9 OOP stands for _________________ QUESTION 10 The operations for a class are called _____ QUESTION 11 The special method that we call when instantiating an object is called a _____ QUESTION 12 API stands for _____ QUESTION 13
- 4. An applet is an extension of the JApplet class. True False QUESTION 14 Which package is the Graphics class part of? _________________ . javax.swing java.swing java.awt javax.awt java.graphics QUESTION 15 Which applet method is called automatically when the applet needs to redraw itself? _________________ . init main paint
- 5. exit applet QUESTION 16 What is an applet viewer? QUESTION 17 Complete the code, changing the color of the Graphics reference g to a color with red=100, green=200, blue=60 public void paint( Graphics g ) { // your code goes here } QUESTION 18 Complete the code, drawing a line between points (100, 200) and (34, 67) public void paint( Graphics g ) { // your code goes here } QUESTION 19 The 4 relational operators, >, >=, <, <= are binary operators. True False QUESTION 20 !( a > 3 ) is equivalent to _________________ . a < 3 a <= 3
- 6. !a < 3 !a <= 3 !( a <= 3 ) QUESTION 21 What is the output of the following code? _________________ . int age = 30; if ( age > 33 ) System.out.print( 1 ); else System.out.print( 2 ); System.out.println( 3 ); 1 2 12 123 23 QUESTION 22 When we use a while loop, we always know in advance how many times the loop body will be executed.
- 7. True False QUESTION 23 When reading data from a file using a while loop, the typical condition to exit the loop is when ___________. We have read the first value in the file We have read 100 values in the file We have reached the end of the file QUESTION 24 Write a loop to output the word EXAM 99 times QUESTION 25 Write a loop to calculate the total of all the numbers between 100 and 200 included (i.e. 100 + 101 + … + 199 + 200); output the total. Part A Explain why access modifiers are necessary for any class being defined. Include an example to further your input on this topic. Part B 1.
- 8. What can you say about the name of a class? It must start with an uppercase letter. The convention is to start with an uppercase letter. 2. What can you say about the name of constructors? They must be the same name as the class name. They can be any name, just like other methods. 3. What is a constructor’s return type? void Object The class nam e A constructor does not have a return type. 4. It is legal to have more than one constructor in a given class.
- 9. true false 47. In the main method of the class GradeClient , you have coded When you compile, you get the following message: Explain what the problem is and how to fix it. 48. In the main method of the class GradeClient , you have coded When you compile, you get the following message: Part A Explain why access modifiers are necessary for any class being
- 10. defined. Include an example to further your input on this topic. Part B 1. What can you say about the name of a class? It must start with an uppercase letter. The convention is to start with an uppercase letter. 2. What can you say about the name of constructors? They must be the same name as the class name. They can be any name, just like other methods. 3. What is a constructor’s return type? void Object The class name A constructor does not have a return type. 4. It is legal to have more than one constructor in a given class. true false 47. In the main method of the class GradeClient, you have coded When you compile, you get the following message: Explain what the problem is and how to fix it. 48. In the main method of the class GradeClient, you have coded When you compile, you get the following message: Name: Date: An Eater’s Manifesto Reading over the article made me realize that the way we eat the food that we eat at the current times is far much different from the perception of food that was there in the past.
- 11. According to the article‚ in the past people used to decide on what food to eat without the use of the help of any nutrition expertise and professionals. This was based on the fact that the question on ‘what food to eat’ was based on the culture of a given group of people. Since culture is passed from one generation to the next‚ this implies that what food that was being eaten by any given cultural group was based on the culture of that given group. The parents‚ therefore‚ played a very major role in determining that their children we to eat when they were born. This is very interesting to me because it is very surprising that whatever the different cultures choose to eat as their food enabled them to live healthy lives. In addition to that‚ I am left with one very interesting question on how they and decided that certain foods were going to healthy for them to take. Most importantly‚ the article points out that culture was the backbone of what food that was to be eaten‚ how much of the food was to be eaten‚ the order of eating the food that was being eaten by a given group of people of a given culture‚ and with what a specific food was to be eaten and the time on when it was supposed to be eaten and this was just passed down from one generation to another by the parents. This left me wondering on how we currently see nutritionists and other specialists advising on what food to be eaten and what food not to be eaten in order to lead and maintain a healthy living. This question‚ however‚ has been answered by the article in a very interesting manner. This is because the article points out that over the past decades the dinner menu has no longer been under mother’s control‚ but has been taken over by food marketers and scientists. In addition to that‚ the article points out that the food that we eat is being controlled by the government. This is because the government plays a very major role in setting up the rules and the regulations regarding dietary guidelines‚ food pyramids‚ and food labeling. The author of the article points out that what his mother ate during the 1930s and 1940s while growing up was not the food
- 12. that the mother ate while growing up. The food eaten in the author’s culture was mainly Jewish-American fare‚ which were mainly the foods that were being eaten by the people that were of the Eastern Europe and Russian origin. These foods included cheese blintzes‚ kreplach‚ knishes‚ stuffed cabbage‚ organ meats‚ chicken liver‚ and several other foods. The author points out that he never saw these food while growing up unless when he visited the grandparents who were still eating the food according to their culture. It is therefore very interesting to know that the foods that we eat currently are not the food that our grandparents used to eat and I believe that everyone should try to search into his/her roots on the food that used to be eaten by their traditional cultures. It might me interesting. In conclusion‚ it is true that the food that we currently eat are not the ones that were eaten by our grandparents based on the culture as most of the food that we eat are determined by what the scientists deem to be healthy. I support the scientists and the government on the foods that they decide that we eat because unlike the past‚ there are some new diseases that were not there at the past and the foods that we are advised to eat will enable us to live healthy lives in the present times.