| uot;);
lists.add("bbbbbbbbbbbbb");
lists.add("cccccccccccccc");
lists.add("ddddddddddddd");
lists.add("eeeeeeeeeeeeeeeee");
for (String s :lists) {
System.out.println(s);
}
}
}
结果：
C:\forms>javac -d c:\forms\web-inf\classes
c:\forms\src\genericTest.java
C:\forms>java -classpath c:\forms\web-inf\classes tigers.genericTest
aaaaaaaaaaaa
bbbbbbbbbbbbb
cccccccccccccc
ddddddddddddd
eeeeeeeeeeeeeeeee
C:\forms>
五、使用‘枚举’类型
package tigers;
import java.util.EnumMap;
enum Simple1 {
A,B,C,D;
}
public class SimpleEnum {
public static void main(String[] args) {
System.out.println(Simple1.A);
for (Simple1 s : Simple1.values()) {
System.out.print(s);
}
System.out.println();
Simple1 s2 = Simple1.D;
switch(s2) {
case A:
System.out.print("A");
break;
case B:
System.out.print("B");
break;
case C:
System.out.print("C");
break;
default:
System.out.print(s2);
}
System.out.println();
EnumMap<Simple1, String> aMap = new EnumMap<Simple1, String>(Simple1.class);
String str = "something";
int i = 0;
for (Simple1 s3 : Simple1.values()) {
aMap.put(s3, str += (i++ + " "));
}
System.out.println(aMap);
for (Simple1 s4 : Simple1.values()) {
System.out.println(s4 + " = " + aMap.get(s4));
}
}
}
J2SE 1.5 Tiger新特性学习(4)
时间:2011-01-31
结果：
C:\tiger>javac -d c:\tiger\cls c:\tiger\src\SimpleEnum.java
C:\tiger>java -classpath c:\tiger\cls tigers.SimpleEnum
A
ABCD
D
{A=something0 , B=something0 1 , C=something0 1 2 , D=something0 1 2 3 }
A = something0
B = something0 1
C = something0 1 2
D = something0 1 2 3
六、在类定义上使用泛型和继承
package tigers;
import java.io.UnsupportedEncodingException;
public class GenericExtends {
public static void main(String[] args) {
try {
ActionToucher.execute(
new Action<NoSuchMethodException>() {
public void method() throws NoSuchMethodException {
System.out.println("Action<NoSuchMethodException>");
}
}
);
ActionToucher.execute(
new Action<NoSuchFieldException>() {
public void method() throws NoSuchFieldException {
System.out.println("Action<NoSuchFieldException>");
}
}
);
ActionToucher.execute(
new Action&l
|
