JAVA /** * This class contains an example of an enumerated type. * The task is to: * 1. Run the code and understand what it does. Then, * Uncomment the commented code section and understand and briefly explain * what the alternate definition of the enum does. */ public class EnumDemo { public enum Day {MON, TUE, WED, THU, FRI, SAT, SUN}; /* //This is an enhanced enum for Day. public enum Day { MON("1"), TUE("2"), WED("3"), THU("4"), FRI("5"), SAT("6"), SUN("7"); private String display; private Day(String display){ this.display = display; } public String toString(){ return display; } }*/ public static void main(String[] args) { Day d = Day.MON; System.out.println("We always start from day: " + d); // enum is printed as "1" or "MON" depending on enum switchDemo(d); d = Day.WED; System.out.println("Then it is day: " + d); switchDemo(d); System.out.println("\nNo!, it goes like this... \n"); for (Day a : Day.values()) { System.out.println("Day " + a); switchDemo(a); } } public static void switchDemo(Day d) { switch (d) { case MON: System.out.println("This is tough."); break; case TUE: System.out.println("This is getting better."); break; case WED: System.out.println("Half way there."); break; case THU: System.out.println("I can see the light."); break; case FRI: System.out.println("Now we are talking."); break; default: System.out.println("Day off!"); } } }
OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
JAVA
/**
* This class contains an example of an enumerated type.
* The task is to:
* 1. Run the code and understand what it does. Then,
* Uncomment the commented code section and understand and briefly explain
* what the alternate definition of the enum does.
*/
public class EnumDemo {
public enum Day {MON, TUE, WED, THU, FRI, SAT, SUN};
/*
//This is an enhanced enum for Day.
public enum Day {
MON("1"), TUE("2"), WED("3"), THU("4"), FRI("5"), SAT("6"), SUN("7");
private String display;
private Day(String display){
this.display = display;
}
public String toString(){
return display;
}
}*/
public static void main(String[] args) {
Day d = Day.MON;
System.out.println("We always start from day: " + d); // enum is printed as "1" or "MON" depending on enum
switchDemo(d);
d = Day.WED;
System.out.println("Then it is day: " + d);
switchDemo(d);
System.out.println("\nNo!, it goes like this... \n");
for (Day a : Day.values()) {
System.out.println("Day " + a);
switchDemo(a);
}
}
public static void switchDemo(Day d) {
switch (d) {
case MON:
System.out.println("This is tough.");
break;
case TUE:
System.out.println("This is getting better.");
break;
case WED:
System.out.println("Half way there.");
break;
case THU:
System.out.println("I can see the light.");
break;
case FRI:
System.out.println("Now we are talking.");
break;
default:
System.out.println("Day off!");
}
}
}
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