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java关于substring(a,b)的用法

substring(a, b)表示截取下标从a开始到b结束的字符，包含第a个字符但是不包含第b个字符，可以看成[a,b)。例如0x12, substring(2,length) = 12;字符串从0开始到字符串长度结束(因为取不到长度)

7024w

由LeetCode 7，9 总结的将数反转的方法

Scanner scanner = new Scanner(System.in); int input = Integer.parseInt(scanner.next()); int y = input; int result = 0; while(input != 0){ result = result*10 + input%10; input = input/10; }

7024w

Bukkit获得最后一个击打玩家的实体

public class getLastDamager { public static Entity getLastDamager(Entity entity) { EntityDamageEvent event = entity.getLastDamageCause(); if (event != null && !event.isCanc

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Bukkit获取玩家此时面对的方块

public static Entity getNearestEntityInSight(Player player, int range) {ArrayList<Entity> entities = (ArrayList<Entity>) player.getNearbyEntities(range, range, range); ArrayList<Block&g

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Bukkit简单获取羊毛颜色的方法

@EventHandler public void onInteract(PlayerInteractEvent event){ Player player = event.getPlayer(); ItemStack block = player.getInventory().getItemInMainHand();