//Class Item
public class Item {
}
String A, B;
int C, D;
// Constructor
public Item(String A, String B, int C, int D) {
this.A = A;
this.B = B
this.C = C;
this.D = D
public String toFormattedString() {
return String.format("%s %s %d %d", A, B, C, D);
//Class ItemTest
public class ItemTest {
Rocket itemList [];
public ItemTest() {
itemList = new Item[5];
doSampleItem();
itemList[0] = new Item("A”, "ABC DEF", 400, 35);
itemList[1] = new Item("aaaa”, "bbbbbbbbbb", 10, 1000);
itemList[2] = new Item("ccc ddddd”, "eeeee ffff jjjj", 66000, 888);