Question

Create three variables for an int array, the size of the array, and a Scanner object to read keyboard input. Ask the user to specify the size of the array and then construct an int array of that size. Next, use a for loop to continuously ask the user to specify values for each location in the array. Lastly, print contents of the array as a histogram using the asterisk character (*). This will require using nested for loops. The outer loop iterates over the locations of the array. The inner loop uses the value at each location of the array to print the correct number of characters. in the java language.

Answer 1

PrintHistogram.java

import java.util.Scanner;

public class PrintHistogram {

   public static void main(String[] args) {
       Scanner console = new Scanner(System.in);
       System.out.println("Enter the sizze of an array:");
       int size = console.nextInt();
       int array[] = new int[size];
       for(int i=0;i<array.length; i++) {
           System.out.println("Enter the element "+(i+1)+": ");
           array[i] = console.nextInt();
       }
       for(int i=0;i<array.length; i++) {
           System.out.print(array[i]+": ");
           for(int j=0;j<array[i];j++) {
               System.out.print("* ");
           }
           System.out.println();
       }

   }

}

Output:

Enter the sizze of an array:
5
Enter the element 1:
4
Enter the element 2:
6
Enter the element 3:
7
Enter the element 4:
1
Enter the element 5:
2
4: * * * *
6: * * * * * *
7: * * * * * * *
1: *
2: * *