å¤æãã ãããã®ã¤ã³ã¿ã¼ãã§ã¤ã¹ã¨ CollectionUtilsã¯ã©ã¹ã使ã£ã¦ã ä¸æ¬å®è¡ãä¸æ¬å¤æãå¤å®ãã¦ä¸é¨åå¾ ãªãã¦ãã¨ãå¯è½ã§ãã 以ä¸ã¯Transformerã¨CollectionUtils#transform(2) ã使ã£ãä¸æ¬å¤æä¾ã§ãã Test1.java import java.util.Collection; import org.apache.commons.collections.CollectionUtils; import org.apache.commons.collections.FastArrayList; import org.apache.commons.collections.Transformer; public class Test1 { public static void main(String[] args) { Collecti
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