课堂测试三
package word_show;
import java.io.*;import java.util.*;import java.util.Map.Entry;
public class word3 { public static int n=0; public static void main(String[] args) { Scanne...
第二阶段
package word_show;
import java.io.*;import java.util.*;import java.util.Map.Entry;
public class word2 { public static int n=0; public static void main(String[] args) { Scanner ...
ArrayList存储数字
import java.util.ArrayList;
public class Arr_test { public static void main(String[] args) { ArrayList<Integer> myNumbers = new ArrayList<Integer>(); myN...