I have a nested LinkedList that I need to run through a loop and need the .size() of the nested list. How can I access this nested list? The outer list only has 1 element and that element has the number of elements I need to run the for loop.
LinkedList<LinkedList<Plan>> eligiblePlansList = new LinkedList<>(); LinkedList<String> planNames = new LinkedList<>(); String [] arr; /** * Creates new form ComparePlansGUI */ public ComparePlansGUI() { initComponents(); } public ComparePlansGUI(HealthCare hc, Customer c){ this.hc = hc; eligiblePlansList.add(p.eligiblePlans(c, hc.getPlans())); for (int i = 0; i < eligiblePlansList.size(); i++){ planNames.add(i, eligiblePlansList.get(i).get(i).planName); } arr = planNames.toArray(new String[planNames.size()]); planNames.clear(); initComponents(); }
尝试这个:
eligiblePlansList.get(0).size()
eligiblePlansList.get(0).size()
You need to add additional loop:
for (int i = 0; i < eligiblePlansList.size(); i++) {
LinkedList<Plan> planList = eligiblePlansList.get(i); // current list
for (int j = 0; i < planList.size(); i++) {
Plan plan = planList.get(j); // current plan
planNames.add(i, plan.planName);
}
}
for(Linkedlist item:plans)
for(plan p:item)
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