Java基本数据类型转换二

public class TestConvert2 {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int i = 1,j;
float f1 = 0.1f;
float y = (float)0.2;
float f2 = 123;
long l1 = 12345678;
long l2 = 8888888888L;
double d1 = 2e20,d2 = 124;
byte b1 = 1,b2 = 2,b3 = 127;
j = 0;
j = j + 10;
i = i/10;
i = (int) (i*0.1);
char c1 = 'a',c2 = 125;
byte b = (byte)(b1-b2);
char c = (char)(c1 + c2 - 1);
float f3 = f1 + f2;
float f4 = (float)(f1 + f2*0.1);

double d= d1*i + j;
float f = (float)(d1*5 + d2);

}

}