Javaaaaaaaaaaaaaaaaaaaaa
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6621d48a07
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<?xml version="1.0" encoding="UTF-8"?>
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<project-shared-configuration>
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<!--
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This file contains additional configuration written by modules in the NetBeans IDE.
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The configuration is intended to be shared among all the users of project and
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therefore it is assumed to be part of version control checkout.
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Without this configuration present, some functionality in the IDE may be limited or fail altogether.
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-->
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<properties xmlns="http://www.netbeans.org/ns/maven-properties-data/1">
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<!--
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Properties that influence various parts of the IDE, especially code formatting and the like.
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You can copy and paste the single properties, into the pom.xml file and the IDE will pick them up.
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That way multiple projects can share the same settings (useful for formatting rules for example).
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Any value defined here will override the pom.xml file value but is only applicable to the current project.
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-->
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<netbeans.hint.jdkPlatform>JDK_20__System_</netbeans.hint.jdkPlatform>
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</properties>
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</project-shared-configuration>
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/*
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* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
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* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
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*/
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package edu.slcc.asdv.caleb.gemericrules;
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import java.util.ArrayList;
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/**
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*
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* @author caleb
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*/
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public class GenericRule4 {
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public static void f1(ArrayList<?> list) {
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System.out.println(list.size());
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///list.add(new Integer(5));
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}
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public static void main(String[] args)
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{
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f1(new ArrayList<Integer>());
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f1(new ArrayList<Double>());
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}
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}
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/*
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* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
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* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
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*/
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package edu.slcc.asdv.caleb.gemericrules;
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import java.util.ArrayList;
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import java.util.List;
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/**
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*
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* @author caleb
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*/
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public class GenericRule5 {
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public static void main(String[] args)
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{
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List<?> list1 = new ArrayList<Integer>();
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ArrayList<?> list2 = new ArrayList<Double>();
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ArrayList<?> list3 = new ArrayList<String>();
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//list3.add("abc");
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System.out.println(list3.size());
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System.out.println(list3.subList(0, 0));
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}
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}
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/*
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* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
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* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
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*/
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package edu.slcc.asdv.caleb.gemericrules;
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import java.util.ArrayList;
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import static java.util.Collections.list;
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import java.util.List;
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/**
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*
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* @author caleb
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*/
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public class GenericRule6 {
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public static void f6(List<? extends A> list) {
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System.out.println(list.size());
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}
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public static void main(String[] args)
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{
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List<A> list1 = new ArrayList<>();
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list1.add (new C());
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list1.add (new B());
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f6(list1);
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ArrayList<B> list2 = new ArrayList<>();
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}
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}
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//class A{}
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//class B extends A{}
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//class C extends B{}
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/*
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* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
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* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
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*/
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package edu.slcc.asdv.caleb.gemericrules;
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import java.util.ArrayList;
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import static java.util.Collections.list;
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import java.util.List;
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/**
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*
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* @author caleb
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*/
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public class GenericRule7 {
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public static void f6(List<? extends A> list)
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{
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System.out.println(list.size());
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}
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public static void main(String[] args)
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{
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List<A> list1 = new ArrayList<>();
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list1.add(new C());
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list1.add(new B());
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List<? extends A> list = list1;
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ArrayList<B> list2 = new ArrayList<>();
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list1.add(new A());
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list = list2;
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}
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}
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class A {
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}
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class B extends A {
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}
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class C extends B {
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}
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@ -0,0 +1,39 @@
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/*
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* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
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* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
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*/
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package edu.slcc.asdv.caleb.gemericrules;
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import java.util.ArrayList;
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import java.util.List;
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/**
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*
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* @author caleb
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*/
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public class GenericRule8<T1> {
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// List<? extends T1> lista = new ArrayList<String>();
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public static <T2> void f8(List<? extends T2> list)
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{
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System.out.println(list.size());
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//list.add(new C());
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}
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public static void main(String[] args)
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{
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list<A> list1 = new ArrayList<>();
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list1.add(new C());
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list1.add(new B());
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f8(list1);
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ArrayList<B> list2 = new ArrayList<>();
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list2.add(new A());
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f8(list2);
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ArrayList<String> list3 = new ArrayList<String>();
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list3.add("abc");
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f8(list3);
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}
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}
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