/*
*测试全局变量的操作
*/
public class GlobalVar
{
int a = 10;
double b = 20;
public static void main(String[] args)
{
GlobalVar globalVar = new GlobalVar();
System.out.println("the value a = " + globalVar.a);
globalVar.print();
System.out.println("after changed the value a = " + globalVar.a);
}
public void print()
{
System.out.println("the global variable a = " + a + ",b = " + b);
a=30;
System.out.println("the global variable a = " + a + ",b = " + b);
}
}
这个程序中GlobalVar globalVar = new GlobalVar();是什么意思啊
*测试全局变量的操作
*/
public class GlobalVar
{
int a = 10;
double b = 20;
public static void main(String[] args)
{
GlobalVar globalVar = new GlobalVar();
System.out.println("the value a = " + globalVar.a);
globalVar.print();
System.out.println("after changed the value a = " + globalVar.a);
}
public void print()
{
System.out.println("the global variable a = " + a + ",b = " + b);
a=30;
System.out.println("the global variable a = " + a + ",b = " + b);
}
}
这个程序中GlobalVar globalVar = new GlobalVar();是什么意思啊
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