Storing and Retrieving ArrayList values from hashmap

Question

I have a hashmap of the following type

HashMap> map=new HashMap>();    
<         


        

Answer 1

You can use like this(Though the random number generator logic is not upto the mark)

public class WorkSheet {
    HashMap> map = new HashMap>();

public static void main(String args[]) {
    WorkSheet test = new WorkSheet();
    test.inputData("mango", 5);
    test.inputData("apple", 2);
    test.inputData("grapes", 2);
    test.inputData("peach", 3);
    test.displayData();

}
public void displayData(){
    for (Entry> entry : map.entrySet()) {
        System.out.print(entry.getKey()+" | ");
        for(int fruitNo : entry.getValue()){
            System.out.print(fruitNo+" ");
        }
        System.out.println();
    }
}
public void inputData(String name ,int number) {
    Random rndData = new Random();
    ArrayList fruit = new ArrayList();
    for(int i=0 ; i

OUTPUT

grapes | 7 5 
apple | 9 5 
peach | 5 5 8 
mango | 4 7 1 5 5