{ public static void main(String args[])
{ System.out.println("Enter a double value:");
double value =Console.readDouble.readDouble();
System.out.println("Enter a scale [meter or feet]:");
String scalconsole=Console.readString();
Length length=new Length(value ,scale);
System.out.println("length in feet:");
length.convertToFeet().showLength();
System.out.println("Length in meter:");
length.convertToMeter().showLength();
}
}
Length twoFeet=new Length("Feet",2);
twoFeet().converToMeter().showLength();
需要为class,interface或enum Length
还有个程序：
class Address
{ //成员变量
String firstname;
String lastname;
String email;
//构造方法
Address(String _firstname,String _lastname,String _email)
{ firstname=_firstname;
lastname=_lastname;
email=_email;
}
//成员方法
void showAddress()
}
class Parents
{ //成员变量
String LABELS[]={"father","mother"};
Address parents[]=new Address[2];
//构造方法
parents()
{ for(int i;i
System.out.println=Console.readString();
System.out.println("Enter last name for"+LABELS[i]+":");
System.out.println=Console.readString();
System.out.println("Enter email name for"+LABELS[i]+":");
System.out.println=Console.readString();
System.out.println("Enter first name for"+LABELS[i]+":");
parents[i]=new Address(first,last,email );
}
}
}
class parentTest
{ public static void main(String args[])
{Parents parents=new Parents();}
}
import java.io.*;
public class Console
{ public static double readDouble()
{ try
{ return Double.valueof(readString().trim()).doubleValue();
}
catch(NumberFormatException ne)
{ System.err.println("Console.readDouble:Not a double...");
System.exit(-1);
return 0.0;
}
}
public static int readInt()
{ try
{ return Interer.valueof(readString().trim()).doubleValue();
}
catch(NumberFormatException ne)
{ System.err.println("Console.readInt:Not a integer...");
System.exit(-1);
return -1;
}
}
public static String readString()
{ String string=new String();
BufferedReader in=new
BufferedReader(new InputStreamReader(System.in）);
try
{ string=in.readline ();
}
catch (IOException e)
{ System.out.println("Console.readString:Unknow error...");
System.exit(-1);
}
return string;
}
}
错误：需要为class,interface或enum
import java.io.*;