Methods in Java

#java #coding #programming

1) Void Method (No Return Value)

public class Home{
    public static void main(String[] args){
        Home obj = new Home();
        obj.display();
    }
    public void display(){
        return;
    }
}

Explanation:

display() method has void return type
return; is used just to exit the method
Since there is no print statement, nothing is displayed.

Output: Nothing is displayed

2) Marks Calculation Program

public class Marks{
    public static void main(String[] args){
        Marks obj = new Marks();
        int total = obj.SumMarks(70,80,67,54,91);
        int average = obj.AvgMarks(total,5);
        obj.Grade(average);
    }
    public int SumMarks(int no1,int no2,int no3,int no4,int no5){
        return no1+no2+no3+no4+no5;
    }
    public int AvgMarks(int no1,int no2){
        return no1/no2;
    }
    public void Grade(int no1){
        if(no1>90){
            System.out.println("A Grade");
        }
        else if(no1>80){
            System.out.println("B Grade");
        }
        else if(no1>70){
            System.out.println("C Grade");
        }
        else{
            System.out.println("D Grade");
        }
    }
}