Changeset 31 for sample/hadoop-0.16/test.java

Timestamp:

Jul 17, 2008, 3:35:18 PM (17 years ago)

Author:

waue

Message:

update some new ..

File:

• sample/hadoop-0.16/test.java (modified) (7 diffs)

sample/hadoop-0.16/test.java

@@ -8 +8 @@
 import java.io.RandomAccessFile;
 import java.util.StringTokenizer;
+
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hbase.HBaseAdmin;
-import org.apache.hadoop.hbase.HBaseConfiguration;
-import org.apache.hadoop.hbase.HColumnDescriptor;
-import org.apache.hadoop.hbase.HTableDescriptor;
-import org.apache.hadoop.io.Text;
 import org.apache.hadoop.mapred.JobConf;
 
@@ -27 +23 @@
     System.out.println(test.sna);
   }
-
 }
 
 public class test {
   int na;
-
   static int sna;
-
   static String str;
-
   public test() {
-
   }
 
@@ -49 +40 @@
     sna = b;
     str = st;
-
   }
 
@@ -108 +98 @@
     } while (true);
     fw.close();
-
     return first_line;
   }
@@ -114 +103 @@
   boolean deleteFile(String str) throws IOException {
     File ttt = new File(str);
-
     if (ttt.exists()) {
       if (!ttt.delete()) {
@@ -122 +110 @@
       System.out.println("file not exit!");
     }
-
     return true;
   }
@@ -143 +130 @@
     // "/home/waue/out.tmp.txt"));
     // ttt();
+    
+    
+    animal a = new animal();
+    bird b = new bird();
+    dog d = new dog(b);
+    animal aaa = new bird();
+//    dog ddd = new animal();  -> error 
+    
+    animal aa = (animal) b;
+    System.out.println(aa.hand);
+    System.out.println(aa.mind);    
+//    bird bb = (bird) a; -> error
+//    d.setbird(aa); -> error
+//    System.out.println(aa.feather); -> error
 
-
-    // setup Table name
-    String table_name = "test_create_table2";
-    Text text_table_name = new Text(table_name);
-    // setup Column Family
-    String[] Column_Family = { "http:", "url:", "referrer:" };
-    HBaseConfiguration conf = new HBaseConfiguration();
-
-    HBaseAdmin admin = new HBaseAdmin(conf);
-    boolean b = admin.tableExists(text_table_name);
-    System.out.println(b);
-
-    if (!admin.tableExists(text_table_name)) {
-
-      System.out.println("HTable : " + table_name
-          + "  creating ... please wait");
-      HTableDescriptor tableDesc = new HTableDescriptor(table_name);
-      for (int i = 0; i < Column_Family.length; i++) {
-        String st = Column_Family[i];
-        // check name format "string:"
-        if (!st.endsWith(":")) {
-          Column_Family[i] = st + ":";
-          System.out.println("normize :" + st + "->"
-              + Column_Family[i]);
-        }
-        // add column family
-        tableDesc.addFamily(new HColumnDescriptor(Column_Family[i]));
-      }
-      admin.createTable(tableDesc);
-    } else {
-      System.out.println("table exist!");
-    }
-
-
+    // Fu <T>
+    Fu<? extends String> ak;
+    ak = new Fu<String>();
+    ak.getFu();
+    Fu<?> in = ak;
+//    in.setFu("ss"); -> error
+    in.getFu();
   }
 }
+class Fu <T>{
+  T go;
+  void setFu(T go){
+    this.go = go;
+  }
+  T getFu(){
+    return go;
+  }
+}
+
+class animal{
+  String head = "head";
+  String feet = "feet";
+  String body = "body";
+  String hand = "head";
+  String mind = "mind";
+  int id = 1234567;
+}
+class bird extends animal{
+  String feather = "feather";
+  bird(){
+    hand = "wing";
+    id = 1234568;
+    System.out.println(head + hand + body + feet + "id="+id);
+    System.out.println("super = " + super.hand +"this = " + this.hand);
+  }
+}
+class dog extends animal{
+  dog(animal a){
+    System.out.println(a.head + hand + body + feet + "id="+id);
+  }
+  void setbird(bird b){
+    System.out.println(b.head + hand + body + feet + "id="+id);
+  }
+}