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1 import java.util.*; 2 3 public class AddingGroups { 4 5 public static void main(String[] args) { 6 7 Random rnd = new Random(10); 8 Map m = new HashMap(); 9 ... 阅读全文
posted @ 2017-10-26 16:44
vector11248
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1 import java.util.*; 2 3 public class AddingGroups { 4 5 public static void main(String[] args) { 6 Stack stack = new Stack(); 7 8 /*不能向stack当中push一个数组 9 ... 阅读全文
posted @ 2017-10-26 12:40
vector11248
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迭代器能够将遍历的操作与序列底层的结构分离 阅读全文
posted @ 2017-10-26 11:43
vector11248
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1 import java.util.*; 2 class Snow{} 3 class Powder extends Snow{} 4 class Crusty extends Snow{} 5 class Slush extends Snow{} 6 7 class Light extends Powder {} 8 class Heavy extends Powder {... 阅读全文
posted @ 2017-10-26 11:12
vector11248
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1 import java.util.*; 2 class Snow{} 3 class Powder extends Snow{} 4 class Crusty extends Snow{} 5 class Slush extends Snow{} 6 7 class Light extends Powder {} 8 class Heavy extends Powder {... 阅读全文
posted @ 2017-10-26 11:11
vector11248
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