using system;
using system.collections;
using system.text;
public class sampleshashtable {
public static void main() {
// create and initialize a new hashtable.
hashtable table = new hashtable();
//student name, grade
table.add("jay", 100);
table.add("brian", 87);
table.add("rajesh", 92);
table.add("bill", 76);
table.add("brad", 84);
table.add("kit", 91);
table.add("vinaya", 80);
table.add("lakshan", 87);
// display the properties and values of the hashtable.
console.writeline("count: {0}", table.count );
printtable( table );
console.writeline();
int g = (int) table["jay"];
console.writeline ("jay's grade is: {0}", g);
console.writeline();
printitems ("all names", table.keys);
console.writeline();
printitems ("all grades", table.values);
}
public static void printtable( hashtable mylist ) {
console.writeline ("{0,-8} {1,-8}", "name","grade");
console.writeline ("{0,-8} {1,-8}", "----","-----");
foreach (dictionaryentry e in mylist) {
console.writeline ("{0,-8} {1,-8}", e.key, e.value);
}
}
public static void printitems(string title, ienumerable mylist ) {
console.write ("{0}: ", title);
stringbuilder sb = new stringbuilder();
foreach (object o in mylist) {
sb.appendformat( "{0}, ", o);
}
sb.remove (sb.length-2,2);
console.writeline(sb);
}
}
