程序员//
import java.util.Scanner; //输入
public class Operation
{
public static void main(String[] args) //有的直接在打印处提示的 就不做注释了
{
long l=123456789012345l;
System.out.print("这个长整数的的值是:"+l+"
");
float f=2.4f;
System.out.print("这个单精度的小数是:"+f+"
");
boolean b=true;
b=false;
System.out.print("这个布尔型变量的值是:"+b+"
");
byte _b=3;
_b=(byte)(_b+200);
System.out.print(_b);
System.out.print((char)('a'+1)+"
"); //输出两个字符型
System.out.print((char)('你'+1)+"
");
int e=Integer.MAX_VALUE+1; //
System.out.print(e);
@SuppressWarnings("resource")
Scanner input=new Scanner(System.in); //可以输入了
double t; //剩下的就是打印了
System.out.print("Enter the x "+"
");
t = Double.valueOf(input.nextDouble());
t=t/1000*1000;
System.out.print("The calculation result is " + t +"
");
}
}