声明变量和访问修饰符

public class Main { 
/**
时代Java - N o w  J a v a . c o m 提供 
**/

     public static void main (String[] args) { 

         boolean BooleanVal = true;  /* Default is false */ 

 

         char charval = 'G';     /* Unicode UTF-16 */ 

         charval = '\u1990';     

 

         byte byteval;       /*  8 bits, -127 to 127 */ 

         short shortval;     /* 16 bits, -32,768 to 32,768 */ 

         int intval;         /* 32 bits, -2147483648 to 2147483647 */ 

         long longval;       /* 64 bits, -(2^64) to 2^64 - 1 */ 

 

         float   floatval = 1.123456F; /* 32-bit IEEE 754 */ 

         double doubleval = 1.12345678987654;