conversion.java

it is a good tool to help you study java

class Conversion{
public static void main(String args[])
{
byte b;
int i=258;
double d=338.136;
System.out.println("\nConversion of int to byte.");
b=(byte) i;
System.out.println("i and b"+" "+i+" "+b);
System.out.println("\nconversion of double to int");
i=(int)d;
System.out.println("d and i"+" "+ d +" "+i);
System.out.println("\nConversion of double to byte");
b=(byte)d;
System.out.println("d and b"+" "+d+" "+b);

}
}
/*                            强制类型转换
当值258被强制转换为byte变量是,其结果为258除以256(256是byte类型的变化范围)的余数2;当把变量转换为int类型,它的小数部分被舍弃了,当把变量d转换为byte型时,它的小数部分被舍弃了,而且它的值减少为256的模82
*/