IT

Giving the following code snippet. What kind of errors you will get and how can you correct it.

A. 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);

}

}

B. public class HelloJava {

public static void main(String args[]) {

int x=10;

int y=0;

System.out.print(x/y);

}

A. Write a program that reads the following string “Hello, This is IT401 assignment 1” and does the following:

1. Use the replace method of the class String and replace IT401 with Business computer language.

2. Print the number of characters in the string after the replacement.

B. Is the replace method of class String an accessor method or a mutator method. Explain your answer.

Question Three

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.

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()); }}

Question Four

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.

What are the implicit and explicit parameters for the following methods:

1. Box1.translate(5,10);

2. momSavings.getBalance();

Write the following formula in java expression. Show all the required steps.