数据类型转换: 有的时候,程序需要将数据类型,比如 int + float ,结果是float, 这里的int就被转换为float类型,属于合法转换. Java中的合法转换如下图: 红色表示无信息丢失的转换,橙色表示可能有进度损失的转换. package testbotoo; public class shuzhileixingzhuanhuan { public static void main(String[] args){ int n = 123456789; float f = n; /
bool b = 42; // _b is true_ int i = b; // _i has value 1_ i = 3.14; // _i has value 3_ double pi = i; // _pi has value 3.0_ unsigned char c = -1; // _assuming 8-bit chars_, _c has value 255_ signed char c2 = 256; // _assuming 8-bit chars_, _the value