!152 添加自定义判断集合是否包含某类值的工具方法

Merge pull request !152 from Ease/feature/list

hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java

@@ -19,6 +19,13 @@ import java.util.*;
  */
 public class CollUtilTest {
 
+	@Test
+	public void testPredicateContains() {
+		ArrayList<String> list = CollUtil.newArrayList("bbbbb", "aaaaa", "ccccc");
+		Assert.assertTrue(CollUtil.contains(list, s -> s.startsWith("a")));
+		Assert.assertFalse(CollUtil.contains(list, s -> s.startsWith("d")));
+	}
+
 	@Test
 	public void testPadLeft() {
 		List<String> srcList = CollUtil.newArrayList();