Question: The program is already done the question is why is : class MyInteger { BEING USED ? public class Exercise10_03 { public static void main(String[]
The program is already done the question is why is : "class MyInteger {" BEING USED ?
public class Exercise10_03 {
public static void main(String[] args) {
MyInteger n1 = new MyInteger(5);
System.out.println("n1 is even? " + n1.isEven());
System.out.println("n1 is prime? " + n1.isPrime());
System.out.println("15 is prime? " + MyInteger.isPrime(15));
char[] chars = {'3', '5', '3', '9'};
System.out.println(MyInteger.parseInt(chars));
String s = "3539";
System.out.println(MyInteger.parseInt(s));
MyInteger n2 = new MyInteger(24);
System.out.println("n2 is odd? " + n2.isOdd());
System.out.println("45 is odd? " + MyInteger.isOdd(45));
System.out.println("n1 is equal to n2? " + n1.equals(n2));
System.out.println("n1 is equal to 5? " + n1.equals(5));
}
}
class MyInteger {
int value;
MyInteger(int newValue) {
value = newValue;
}
public int getValue() {
return value;
}
public static boolean isEven(int n) {
return (n % 2 == 0);
}
public static boolean isOdd(int n) {
return !isEven(n);
}
public static boolean isPrime(int n) {
for (int f = 2; f < n / 2; f++) {
if (n % f == 0) {
return false;
}
}
return true;
}
public static boolean isEven(MyInteger n) {
return n.isEven();
}
public static boolean isOdd(MyInteger n) {
return n.isOdd();
}
public static boolean isPrime(MyInteger n) {
return n.isPrime();
}
public boolean isEven() {
return isEven(value);
}
public boolean isOdd() {
return isOdd(value);
}
public boolean isPrime() {
return isPrime(value);
}
public boolean equals(int n) {
return (value == n);
}
public boolean equals(MyInteger n) {
return equals(n.getValue());
}
public static int parseInt(String s) {
return Integer.parseInt(s);
}
public static int parseInt(char[] s) {
return parseInt(new String(s));
}
}
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