谁给我解释下这段代码的输出原理？

Question

class singlen {
private static singlen obj=new singlen();
public static int count1;
public static int count2=5;

private singlen(){
    //count1++;
    System.out.println("councstor"+count2);
    count2++;
}
public static singlen getInstence(){
    return obj;
}

}

class dd{
public static void main(String[] args){
singlen s=singlen.getInstence();
System.out.println("count1=="+s.count1);
System.out.println("count2=="+s.count2);

}

}

如题 谢谢

Answer 1

其实就是初始化的一个先后顺序问题
先执行构造函数
[code="java"]
private singlen(){
count1++;
count2++;
}
[/code]
count1和count2的值都变成1，然后在进行变量的赋值
[code="java"]
private static singlen obj=new singlen();
public static int count1;
public static int count2=5;
[/code]
count1没有值，跳过，count2赋值为5，

所以最后打印室1和5