Collection class and Common API

Collection class and Common API

The collection-class Set tool class defines several algorithms for class sets and mappings that are defined as static methods to view the API documentation;

A) public static void sort (list<t> liet)

b) public static int BinarySearch (list<t> list,t key)

c) public static void reverse (list<?> List)

d) public static void Shuffle (List<?> List)

e) public static void swap (list<?> list,int i,int J)

f) public static <T> void Fill (list<? super t> List,t obj)

1List<string> nlist=NewArraylist<string>();2Nlist.add ("Zhangsan");3Nlist.add ("Lisi");4Nlist.add ("Wangwu");5Nlist.add ("Zhaoliu");6Nlist.add ("Tianqi");7System.out.println ("Before Operation");8          for(String s:nlist) {9System.out.print (s+ "");Ten         } One          A System.out.println (); -SYSTEM.OUT.PRINTLN ("After Exchange order"); -Collections.swap (nlist,1,2); the          for(String s:nlist) { -System.out.print (s+ ""); -         } -          + System.out.println (); -System.out.println ("After natural sorting"); + Collections.sort (nList); A          for(String s:nlist) { atSystem.out.print (s+ ""); -         } -          - System.out.println (); -SYSTEM.OUT.PRINTLN ("Binary search")); -System.out.println (Collections.binarysearch (nList, "Zhaoliu")); in          -SYSTEM.OUT.PRINTLN ("Scramble Order")); to collections.shuffle (nList); +          for(String s:nlist) { -System.out.print (s+ ""); the         } *          $ System.out.println ();Panax NotoginsengSystem.out.println ("Fill"); -Collections.fill (NList, "Jay"); the          for(String s:nlist) { +System.out.print (s+ ""); A}

Output Result:

Before operation

Zhangsan Lisi Wangwu Zhaoliu Tianqi

After Exchange order

Zhangsan Wangwu Lisi Zhaoliu Tianqi

After natural sorting

Lisi Tianqi Wangwu Zhangsan Zhaoliu

Binary Method Search

4

Scramble Order

Zhaoliu Tianqi Wangwu Zhangsan Lisi

Fill

Jay Jay Jay Jay

Collection class and Common API