输出正确省市

@Test
	 public void test8() {
	  String[][] cities = new String[3][4];
	  cities[0]= new String[]{"长春市","吉林市","四平市","通化市"};
	  cities[1]= new String[]{"沈阳市","大连市","丹东市","营口市"};
	  String[] arr = {"哈尔滨市","齐齐哈尔市","佳木斯市","漠河市"};
	  cities[2]= arr;
	  System.out.println("请选择省份：0=吉林省,1=辽宁省,2=黑龙江省,3=全部城市");
	  int choose = new Scanner(System.in).nextInt();
	  if(choose != 3) {
	   for(int i=0;i<cities[choose].length; i++) {
	    System.out.print(cities[choose][i]+",");
	   }
	  } else {
	   for(int i=0; i<cities.length; i++) {
	    for(int j=0; j<cities[i].length; j++) {
	     System.out.print(cities[i][j]+",");
	    }
	    System.out.println();
	   }
	  }
	 }