please see the attached file 6
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Business Computer Language IT401 |
Instructions: |
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1 Mark |
Learning Outcome(s): Use programming language elements including syntax, data types, conditional statement, control structures, procedures and arrays in order to create a program based on specification.
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Question One
Giving the following code snippet. What kind of errors you will get and how can you correct it.
- public class HelloJava
{ - public class HelloJava
{
public static void main(String args[])
{
int x=10;
int y=2;
System.out.print(x*y=”);
System.out.printl(x*y);
}
}
public static void main(String args[])
{
int x=10;
int y=0;
System.out.print(x/y);
}
1.5 Marks |
Learning Outcome(s): Use programming language elements including syntax, data types, conditional statement, control structures, procedures and arrays in order to create a program based on specification. |
Question Two
- Write a program that reads the following string “Hello, This is IT401 assignment 1” and does the following:
- Is the replace method of class String an accessor method or a mutator method. Explain your answer.
- Use the replace method of the class String and replace IT401 with Business computer language.
- Print the number of characters in the string after the replacement.
0.5 Mark |
Learning Outcome(s): Use programming language elements including syntax, data types, conditional statement, control structures, procedures and arrays in order to create a program based on specification. |
Question Three
Given the following class create 2 instances of the class and initialize them with the values “Business computer language” and “IT401” respectively.
public class GradeBook {
private String courseName;
public GradeBook (){
courseName =””;}
public GradeBook (String name) {
courseName = name;}
public String getCourseName() {
return courseName;}
public void displayMessage(){
System.out.println(“welcome, this is” + getCourseName()); }}
0.5 Marks |
Learning Outcome(s): Use programming language elements including syntax, data types, conditional statement, control structures, procedures and arrays in order to create a program based on specification. |
Question Four
What are the implicit and explicit parameters for the following methods:
- Box1.translate(5,10);
- momSavings.getBalance();
0.5 Marks |
Learning Outcome(s): Use programming language elements including syntax, data types, conditional statement, control structures, procedures and arrays in order to create a program based on specification. |
Question Five
Write the following formula in java expression. Show all the required steps.