群体简介.txt

适合初学者练习 包括awt小程序、list和map群体等100多个java程序

群体简介 List.1 Collection.txt 
群体简介 List.2 ContainerDemo/ContainerDemo.java 

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群体简介 List.1 Collection.txt 
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001: // Collection interface methods
002: int size();
003: boolean isEmpty();
004: boolean contains(Object o);
005: Iterator iterator();
006: Object[] toArray();
007: Object[] toArray(Object a[]);
008: boolean add(Object o);
009: boolean remove(Object o);
010: boolean containsAll(Collection c);
011: boolean addAll(Collection c);
012: boolean removeAll(Collection c);
013: boolean retainAll(Collection c);
014: void clear();
015: boolean equals(Object o);
016: int hashCode();

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群体简介 List.2 ContainerDemo/ContainerDemo.java 
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001: import java.util.ArrayList;
002: 
003: class ContainerDemo {
004:  public static void main(String args[]) {
005:   ArrayList myList = new ArrayList(25);
006:   myList.add(new String("One"));
007:   myList.add(new String("Two"));
008:   myList.add("Buckle");
009:   String s = "My shoe";
010:   myList.add(s);
011:   System.out.println("There are " + 
012:    myList.size() + " strings in myList");
013:   for (int i = 0; i < myList.size(); i++)
014:    System.out.println(myList.get(i));
015:  }
016: }

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