Java编程练习：比较两个花名册

//请在Begin-End间编写代码 int len1 = roster1.size(); int len2 = roster2.size(); System.out.println(len1); System.out.println(len2); if(len1 != len2){ System.out.println('不相同'); }else{ boolean same = true; for(int i=0; i<len1; i++){ if(!roster1.get(i).equals(roster2.get(i))){ same = false; break; } } if(same){ System.out.println('相同'); }else{ System.out.println('不相同'); } }