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Allaa S
Trouble with array manipulation
1 Answer(s)      2 years and 9 months ago
Posted in : Java Beginners


For this project I have to print 10 random numbers from (0-99), print the max value, the average of the ten numbers, print the first index at which the maximum of the array occurs, and create an array b which has the same values as a only in reverse order, and print out the first 10 values of b. basically the output should be similar to this: Average=47.59 Maximum value=98 Index of maximum=44 First 10 components of b: 71 5 22 57 23 16 14 68 80 23

This is the code i attempted, but i am having trouble putting it together in order to make sence.. any solutions:

import java.util.Random; import java.util.Scanner; public class ArrayRandom{ public static void main(String args[]){ Random r = new Random(); int array [] = new int[100];

    for(int i = 0; i <100; i++){

       array[i] = r.nextInt(100) + 1;
    }
        System.out.println("First 10 components of b: ");
        for(int i = 0; i <10; i++){
       System.out.print(array[i] + " ");
    }
} 
    public int sum( int[] array ){ 
        int sum = 0; 
        for( int i = 0; i < array.length; i++ ){ 
        sum += array[i]; 
    } 
        int average= sum/10;
        System.out.println("Average: "+ average);
        }

        public static void main (String[] args){
            let max = array[0] 
            for(i in array) 
            if i > max 
            max = i

            System.out.println(Math.max(RA); 

        }

}


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October 27, 2011 at 12:55 PM


import java.util.Random;

public class ArrayRandom{
    public static void main(String args[]){
        Random r = new Random();
        int array [] = new int[10];
        for(int i = 0; i <array.length; i++){
        array[i] = r.nextInt(100) + 1;
        }

     int sum = 0; 
     int max = array[0];
      int index=0;
        for( int i = 0; i < array.length; i++ ){ 
        sum += array[i]; 
        if( array[i] > max){
            max =  array[i];
            index=i;
        }
    } 
        int average= sum/10;
        System.out.println("Average is: "+ average);
        System.out.println("Maximum Number is: "+ max);
        System.out.println("Index of max number is: "+ index);
        System.out.println("First 10 components of b: ");
        for(int i = array.length-1; i >=0; i--){
        System.out.print(array[i] + " ");
    }
    }
}


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