LAB 1 WHAT IS WRONG WITH THE FOLLOWING

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Lab 1

Lab 1

What is wrong with the following program statement? How can it be fixed?

System.out.println ("To be or not to be, that

is the question.");

The string to be printed is not all on one line. The problem can be fixed by using the string concatenation operator (+) or by using a print statement for part of the string and a println statement for the remainder of the string.

What output is produced by the following code fragment?

String m1, m2, m3;

m1 = "Quest for the Holy Grail";

m2 = m1.toLowerCase();

m3 = m1 + " " + m2;

System.out.println (m3.replace('h', 'z'));

The output produced is:

Quest for tze Holy Grail quest for tze zoly grail

The original string is concatenated with a lowercase version of itself, then all lowercase ‘h’ characters are replaced with ‘z’.

For each of the following pairs, which represents a class and which represents an object of that class?
- Superhero, Superman
- Justin, Person
- Rover, Pet
- Magazine, Time
- Christmas, Holiday
  - Class: Superhero, Object: Superman
  - Class: Person, Object: Justin
  - Class: Pet, Object: Rover
  - Class: Magazine, Object: Time
  - Class: Holiday, Object: Christmas

List some attributes and operations that might be defined for a class called PictureFrame that represents a picture frame.
Write a short Java function, isMultiple, that takes two long values, n and m, and returns true if and only if n is a multiple of m, that is, n=mi for some integer i.

The modulus operator could be useful here.

public boolean (name of the function)(parameter, parameter) {

(use if statement)

}

public boolean isMultiple(long n, long m){

if (n%m == 0)

Return true;

else

return false;

}

Write a short Java function that takes an array of int values and determines if all the numbers are different from each other ( that is, they are distinct).

The simple solution just checks each number against every other one.

public boolean (name of the function)( parameter array of integers) {

(use for loop and method length-1)

(use for loop and method lenght)

(use if statement and compare array [i] and [j])

}

public boolean allDistinct(int[] ints){

for (int i=0; i<ints.length-1; i++)

for (int j=i+1; j<ints.lenght; j++)

if (ints[i] == ints[j]) return false;

return true;

}

LAB 1 WHAT IS WRONG WITH THE FOLLOWING
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Tags: following program, the following, following, wrong