1.
//: PrintRangeInteger.java
public class PrintRangeInteger
{
public static void main(String[] args)
{
for(int i=2;i<100;i++)
System.out.println(i);
}
}
///:~
2.
//: PrintRangeInteger2.java
public class PrintRangeInteger2
{
public static void main(String[] args)
{
int i=2;
while(i!=48)
{
System.out.println(i);
i++;
}
if(i==48)
return;
}
}
///:~
3.
//: SwitchFor.java
public class SwitchFor
{
public static void main(String[] args)
{
for(int i=0;i<5;i++)
{
switch(i)
{
case 0: System.out.println(i);
break;
case 1: System.out.println(i);
break;
case 2: System.out.println(i);
break;
case 3: System.out.println(i);
break;
default: System.out.println(i);
}
}
}
}
///:~
删除几个break之后:
//: SwitchFor.java
public class SwitchFor
{
public static void main(String[] args)
{
for(int i=0;i<5;i++)
{
switch(i)
{
case 0: System.out.println(i);
//break;
case 1: System.out.println(i);
//break;
case 2: System.out.println(i);
break;
case 3: System.out.println(i);
break;
default: System.out.println(i);
}
}
}
}
///:~
//: SwitchFor.java
public class SwitchFor
{
public static void main(String[] args)
{
for(int i=0;i<5;i++)
{
switch(i)
{
case 0: System.out.println(i);
//break;
case 1: System.out.println(i);
//break;
case 2: System.out.println(i);
//break;
case 3: System.out.println(i);
//break;
default: System.out.println(i);
}
}
}
}
///:~
并没有看懂删除break 后的运行结果。。。有大神可以指导一下