<分区>
Possible Duplicate:
If/Else vs. Switch
我这里有两段代码，我只是想问一下，在可写性(易于编写代码)和可读性(易于理解代码)方面，两者中哪一个更好。
开关盒:
import java.io.*;
public class Quarter{
public static void main(String[] args){
int day;
String input="";
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Input a number from 1 to 3: ");
try{
input=in.readLine();
}catch(IOException e){
System.out.println("Error!");
}
day=Integer.parseInt(input);
switch(day){
case 1:
case 2:
case 3:
System.out.println("1st Quarter");
break;
case 4:
case 5:
case 6:
System.out.println("2nd Quarter");
break;
case 7:
case 8:
case 9:
System.out.println("3rd Quarter");
break;
case 10:
case 11:
case 12:
System.out.println("4th Quarter");
break;
default: System.out.println("Error!");
}
}
}
if-else:
import java.io.*;
public class Days{
public static void main(String[] args){
int day;
String input="";
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Input a number from 1 to 12: ");
try{
input=in.readLine();
}catch(IOException e){
System.out.println("Error!");
}
day=Integer.parseInt(input);
if(day>=1 && day<=3){
System.out.println("1st Quarter");
}else
if(day>=4 && day<=6){
System.out.println("2nd Quarter");
}else
if(day>=7 && day<=9){
System.out.println("3rd Quarter");
}else
if(day>=10 && day<=12){
System.out.println("4th Quarter");
}else
System.out.println("Error!");
}
}