11) Write a method (including header and body) that takes as an input an array o
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Question
11) Write a method (including header and body) that takes as an input an array of doubles and f three doubles containing the average, the maximum and the minimunm values of the input array. Test the program by calling the method from the main method. For example Input: 1 2 3 45 Output: 3 5 1 12) Write a Java method that takes a string as an argument and returns the reverse the string. Test the program by calling the method from the main method. reverseString("Hello") "olleH" reverseString("Bye") "eyB"Explanation / Answer
Solution::
(11)
Source Code::-
import java.util.Scanner;
class Array_Sum
{
public static void sum_avg_max_min(int num[],int n){
//Method will print avg,min and max of the given array.
int min=0,max=0,avg=0,sum=0; //variable declaration.
int element[]=new int[3]; //variable declaration.
for (int i =0;i<n;i++){ //looping all the number present in the array.
sum=sum+num[i]; //finding sum.
if (i==0){ //if i==0 it means it is first element of the array.
max=num[i];//Assign first element of array in the max.
min=num[i];//Assign first element of the array in the min.
}
if (num[i] > max)//If num[i] position is greater than max.
max=num[i];//then update the value of max element.
if (num[i] < min)//If num[i] position is less than min .
min=num[i];//Then update the value of min element.
}
avg=sum/n; //Finding average
element[0]=avg; //Oth position is avg
element[1]=max;//1th position is max
element[2]=min;//2nd position is min.
for (int i=0;i <=2;i++)
System.out.print(element[i]+" "); //Printing all the values.
}
public static void main(String args[])
{
int n;
Scanner s = new Scanner(System.in);
System.out.print("Enter no. of elements you want in array:");
n = s.nextInt();
int a[] = new int[n];
System.out.print("Enter all the elements:");
for(int i = 0; i < n; i++) //Storing all the number in array.
a[i] = s.nextInt();
sum_avg_max_min(a,n); //calling sum_avg_max_min method.
}
}
Output::-
(12)
Source Code::-
import java.util.*;
class ReverseString
{
public static void reverse_string(String original){
String reverse="";
int length = original.length();//Finding length of the given string.
for ( int i = length - 1 ; i >= 0 ; i-- ) //Taking each character in reverse order.
reverse = reverse + original.charAt(i);//storing all the character in reverse order.
System.out.println("Reverse of entered string is: "+reverse);
}
public static void main(String args[])
{
String original;
Scanner in = new Scanner(System.in);
System.out.println("Enter a string to reverse");
original = in.nextLine();
reverse_string(original);//Calling reverse_string method.
}
}
Output::-
Enter a string to reverse
Hello
Reverse of entered string is: olleH
Enter a string to reverse
Bye
Reverse of entered string is: eyB
Enter all the elements:23
34
56
78
47 78 23 ----------47 is avg,78 is max and 23 is min .
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