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arrays done

Jennifer Chao 5 years ago
parent
commit
ee317ea40f
1 changed files with 11 additions and 4 deletions
  1. 11
    4
      src/main/java/rocks/zipcode/quiz5/arrays/ArrayUtils.java

+ 11
- 4
src/main/java/rocks/zipcode/quiz5/arrays/ArrayUtils.java View File

@@ -1,22 +1,29 @@
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 package rocks.zipcode.quiz5.arrays;
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+import java.util.ArrayList;
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+import java.util.Arrays;
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+import java.util.List;
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+
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 /**
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  * @author leon on 01/01/2019.
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  */
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 public class ArrayUtils {
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     public static String getMiddleElement(String[] values) {
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-        return null;
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+        return values[values.length / 2];
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     }
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     public static String[] removeMiddleElement(String[] values) {
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-        return null;
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+        List<String> list = new ArrayList<>(Arrays.asList(values));
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+        list.remove(getMiddleElement(values));
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+
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+        return list.toArray(new String[0]);
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     }
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     public static String getLastElement(String[] values) {
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-        return null;
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+        return values[values.length - 1];
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     }
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     public static String[] removeLastElement(String[] values) {
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-        return null;
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+        return Arrays.copyOfRange(values, 0, values.length - 1);
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     }
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 }