写一个小程序实现输入一个数字然后再输出~
import java.io.*;
class gaga
{static int c;
gaga()
{
System.out.println("请输入一个数字:");
try
{
c=System.in.read();
}catch(Exception e){}
System.out.println(c);
}
}
public class convert1 extends gaga
{
public static void main(String args[])
{
gaga gaga1 = new gaga();
}
}
为什么这个不行哦~
import java.io.*;
class gaga
{static int c;
gaga()
{
System.out.println("请输入一个数字:");
try
{
c=System.in.read();
}catch(Exception e){}
System.out.println(c);
}
}
public class convert1 extends gaga
{
public static void main(String args[])
{
gaga gaga1 = new gaga();
}
}
为什么这个不行哦~
我用eclipse
输入1
输出49
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
c = (int)Double.parseDouble(in.readLine()); 这样就好了
{
Gaga()
{
int x = 0;
DataInputStream in = new DataInputStream(System.in);
System.out.println("input x:");
try
{
x = Integer.parseInt(in.readLine());
System.out.println("x=" + x);
} catch (Exception e)
{
System.out.println("Wrong!!!!!!!!");
}
}
}public class Test
{
public static void main(String args[])
{
new Gaga();
}
}