buggy.java

来自「01 Java入门 benin 01 Java Introduction to」· Java 代码 · 共 9 行

public class Buggy{
	static String name;
	public static void main(String[] args){
		int n=name.length();  //bug
		System.out.println(n);
		name+="; The end";
		System.out.println(name);
	}
}