66 lines
2.0 KiB
Java
66 lines
2.0 KiB
Java
package Practice.School;
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import Practice.School.Developers.BackendDeveloper;
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public class HumanMainClass {
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public static void main(String[] args){
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//Polymorphism
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human h1 = new student("John", 20, "UoG", 5.00);
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System.out.print("H1 starts here: ");
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h1.sayHello(); //From Student
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System.out.println();
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((student) h1).doWork(); //I am doing work
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((student)h1).getGPA(); // Cast to student to access GPA
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BackendDeveloper b1 = new BackendDeveloper("John", 20, "UoG", "Mac", "Java");
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human h2 = new BackendDeveloper("John", 20, "Dev", "Mac", "Java");
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System.out.println("\nH2 starts here");
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// Casting to access methods
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((BackendDeveloper)(h2)).code(); //Overriding From abstract class Developer
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((BackendDeveloper)(h2)).code("Java"); //Overloading
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((BackendDeveloper)(h2)).debug();
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((BackendDeveloper)(h2)).doWork("Project");
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((BackendDeveloper)(h2)).rest();
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h2.sayHello(); //Using polymorphism
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// polymorphism
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System.out.println("\nB1 starts here");
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b1.code();
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b1.debug();
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b1.doWork("Project");
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b1.rest();
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//BackendDeveloper b = new BackendDeveloper("John", 20, "UoG", "Mac", "Java");
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BackendDeveloper b = new BackendDeveloper();
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b.doWork("game");
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Dataset DA = new Dataset();
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int [] x = DA.getId();
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for(int i = 0; i < x.length; i++){
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System.out.println(x[i]);
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}
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//Output:
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// H1 starts here: From Student
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// I am doing work
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// My GPA is 5.0
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//
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// H2 starts here
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// My name is John and I am coding in Java
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// I am coding in Java
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// I am debugging in Java
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// I am doing Project on my Mac
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// I am on a break
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// Hello, my name is John and I am 20 years old.
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//
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// B1 starts here
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// My name is John and I am coding in Java
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// I am debugging in Java
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// I am doing Project on my Mac
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// I am on a break
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}
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}
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