java中常量池的特点

String =”hello”              hello 实在常量池中，内容不可改变

public class Text02 {

 

public static void main(String[]args) {

// TODO Auto-generated method stub

String[] a ={"Hello","word"} ;

String b ="Hello";

show(a,b);

System.out.println(b);        //输出Hello

System.out.println(a[0]);    // 输出word

}

public static void show(String[]a,String b){

a[0] = "word";

b="word";

//System.out.println(a);   

}

 

}