JavaExamples/MethodsDemo.java at master · alimogh/JavaExamples · GitHub

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//why we use methods?

//1.code reusability

//2.makes our program easy to write and understand with clean code

class MethodsDemo{

public static void show(){

System.out.println("Bakwaasaassssss");

}

public static int add(){

return 2+5;

}

public static int mul(int a,int b){

return a*b;

}

//arr[]

public static int average(int[] arr){

int numOfSub = arr.length;

int totalMarks = 0;

for(int marks : arr){

totalMarks = totalMarks + marks;

}

int avg = totalMarks/numOfSub;

return avg;

}

public static void main(String[] args){

show();

int a = add();

System.out.println(a);

int b = mul(7,2);

System.out.println(b);

int[] arr = {100,89,98,90,32};

int avg = average(arr);

System.out.println(avg);

int[] arr2 = {0,5,7,12,16};

int avg2 = average(arr2);

System.out.println(avg2);

}

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