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public class SetVariable

{

// 全局变量

static double pi=3.141592654;

static short s1;

static int i1;

static long l1;

static char ch1;

static float f1;

static double d1;

static boolean b1;

public static void main(String args[])

{

// 局部变量

short s2 = 35;

int i2 = -32;

long l2 = 34555L;

char ch2 = 'A';

float f2 = 897.89F;

double d2 = 34.345;

boolean b2 = false;

// 输出变量

System.out.println("数学常量pi ="+pi);

// 输出局部变量

System.out.println("*********局部变量*********");

System.out.println("短整型变量s2 ="+s2);

System.out.println("整型变量i2 ="+i2);

System.out.println("长整型变量l2 ="+l2);

System.out.println("字符变量ch2 ="+ch2);

System.out.println("浮点数类型f2 ="+f2);

System.out.println("双精度型变量d2 ="+d2);

System.out.println("布尔型变量b2 ="+b2);

// 调用方法修改全局变量的值

change();

// 输出全局变量的值

System.out.println("*********全局变量************");

System.out.println("短整型变量s1 ="+s1);

System.out.println("整型变量i1 ="+i1);

System.out.println("长整型变量l1 ="+l1);

System.out.println("字符型变量ch1 ="+ch1);

System.out.println("浮点数类型f1 ="+f1);

System.out.println("双精度型变量d1 ="+d1);

System.out.println("布尔型变量b1 ="+b1);

}

public static void change()

{

s1 = 125;

i1 = 88;

l1 = 9876544321L;

ch1= 'B';

f1 = 3.2590F;

d1 = -1.04E-5;

b1 = true;

}

}