Question

We use bluej for our JAVA class. If you can help me id greatly appreciate it.

Create a new Java class called AverageWeight. Create two arrays: an array to hold 3 different names and an array to hold their weights. Use Scanner to prompt for their name and weight and store in correct array. Compute and print the average of the weights entered using printf command. Use a loop to traverse and print the elements of each array or use Arrays class method to print. Submit your code.

Answer 1

import java.util.*;
class AverageWeight //creating a class AverageWeight
{
   public static void main(String[] args)
   {
       String names[]=new String[3]; //creates string array with size 3 to stores names
       float weights[]=new float[3]; //creates float array with size 3 to stores weights
       for(int i=0;i<3;i++)
       {   Scanner sc =new Scanner(System.in);
           System.out.print("Enter Name:");
           names[i]=sc.nextLine(); //taking name from user
           System.out.print("Enter weight:");
           weights[i]=sc.nextFloat(); //taking weight from user
           System.out.println(); //prints new line
       }
       System.out.print("Name\t\tWeight\n"); //\t for tab space
       System.out.print("----------------------\n");
       float sum=0;
       for(int i=0;i<3;i++)
       {
           System.out.print(names[i]+"\t\t"+weights[i]+"\n"); //prints name and weight of 3 persons
           sum=sum+weights[i]; //sum of 3 weights
       }
       System.out.println();
       System.out.print("Average Weight:"+sum/3); //prints average
   }
}

1 2 3 4 import java.util.*; class AverageWeight //creating a class AverageWeight { public static void main(String[] args) { { String names[]=new String[3]; //creates string array with size 3 to stores names float weights[]=new float [3]; //creates float array with size 3 to stores weights for(int i=0;i<3;i++) Scanner sc =new Scanner(System.in); System.out.print("Enter Name:"); names[i]=sc.nextLine(); //taking name from user System.out.print("Enter weight: "); weights[i]=sc.nextFloat(); //taking weight from user System.out.println(); //prints new line } 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 System.out.print("Name\t\tWeight\n"); //\t for tab space System.out.print("- -\n"); float sum=0; for(int i=0;i<3; i++) { System.out.print(names[i]+"\t\t"-weights[i]+"\n"); //prints name and weight of 3 persons sum=sum-weights[i]; //sum of 3 weights } System.out.println(); System.out.print("Average Weight:"+sum/3); //prints average

Enter Name:himanth Enter weight:54 Enter Name:raj Enter weight:43 Enter Name:roy Enter weight:65 Name Weight himanth raj roy 54.0 43.0 65.0 Average Weight:54.0