assign.java

java程序设计 清华出版社 孙燮华老师编写的程序源代码

//Assign.java 
public class Assign{
  public static void main(String args[]){
  	byte  b  = 127;        //byte范围 -128=-2^7 ~ 2^7-1=127
  	short s  = 32767;      //short范围-32768=-2^15 ~ 2^15-1=32767
    int   i  = -2147483648;//int范围-2147483648=-2^31 ~ 2^31-1=2147483647
    long  l  = 12345678910111213L;//声明长整型变量并赋值
    float f  = 3.1414f;    //声明浮点型变量并赋值
    double d = 3.1415926;  //声明双精度型变量并赋值
    boolean TrueFalse;     //声明布尔类型变量
    char c = 'A';          //声明字符类型变量并赋值
    TrueFalse = 6>7;       //给布尔类型变量赋值
    System.out.println("byte  b = " + b);
    System.out.println("short s = " + s);
    System.out.println("int   i = " + i);
    System.out.println("long  l = " + l);
    System.out.println("float f = " + f);
    System.out.println("double d = " + d);
    System.out.println("char c   = "+c);
    System.out.println("boolean TrueFalse = " + TrueFalse);
  }
}