import java.util.Random;
int [] values={0,0,1,1,1,2,2,2,2,2};
int size=values.length;
Random rd=new Random();
int n=rd.nextInt(size-1);
System.out.println("SWITCH_VALUE from inside:"+values[n]);
vars.put("SWITCH_VALUE",String.valueOf(values[n]));
谁能帮忙解释下这段代码的意思
