Java DataType数据类型

import java.util.*;

public class DataType{

public static void main(String[] args){

boolean flag;

char yeschar;

byte finbyte;

int intvalue;

long longvalue;

short shortvalue;

float floatvalue;

double doublevalue;

flag = true;

yeschar = 'y';

finbyte = 30;

intvalue = -70000;

longvalue = 2012;

shortvalue = 20000;

floatvalue = 9.997E-5f;

doublevalue = floatvalue * floatvalue;

System.out.println("The value are:");

System.out.println("布尔类型变量
flag = " + flag);

System.out.println("字符类型变量
yeschar = " + yeschar);

System.out.println("字节类型变量
finbyte = " + finbyte);

System.out.println("整形变量
intvalue = " + intvalue);

System.out.println("长整型变量
longvalue = " + longvalue);

System.out.println("短整型型变量
shortvalue = " + shortvalue);

System.out.println("浮点型变量
floatvalue = " + floatvalue);

System.out.println("双精度浮点型变量
doublevalue = " + doublevalue);

}

}