java_5_属性/字段/变量

新建文件夹

public class JavaA {
    
    public String name="guoyasoft";
    public int age=23;
    public String addr="shanghai";
        
    public void hello(){
        System.out.println("my name is  A !" );
    }
    
    public static void main(String[] args) {
        JavaA obj=new JavaA();
        obj.hello();
        System.out.println("name="+obj.name);
        System.out.println("age="+obj.age);
        System.out.println("addr="+obj.addr);
    }
}