Method in java

Void Method(with return type) example public class Display { public static void main ( String [] args ){ Display casio = new Display (); casio . add (); } public void add (){ return ; } } Flow of execution main() │ │ create object ▼ Display casio = new Display() │ │ method call ▼ casio.add() │ ▼ add() method executes │ ▼ return; │ ▼ control returns to main() │ ▼ program ends Marks Calculation Example public class Marks { public static void main ( String [] args ){ int total = sumMarks ( 100 , 98 , 78 , 95 , 91 ); int avg = average ( total ); grade ( avg ); } public static int sumMarks ( int m1 , int m2 , int m3 , int m4 , int m5 ){ int total = m1 + m2 + m3 + m4 + m5 ; return total ; } public static int average ( int total ){ int avg = total / 5 ; return avg ; } public static void grade ( int avg ){ if ( avg >= 90 ){ System . out . println ( "A" ); } else if ( avg >= 80 ){ System . out . println ( "B" ); } else if ( avg >= 70 ){ System . out . println ( "C" ); } else if ( avg >= 60 ){ S