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Author: AvinandanBose

ConcurrentHashMapMethods33.java

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+import java.util.concurrent.ConcurrentHashMap;
+
+public class ConcurrentHashMapMethods33 {
+
+    //search​(long parallelismThreshold, BiFunction<? super K,​? super V,​? extends U> searchFunction)
+    public static void main(String[] args) throws Exception {
+        ConcurrentHashMap<String, String> map = new ConcurrentHashMap<>();
+        map.put("one", "1");
+        map.put("two", "2");
+        map.put("three", "3");
+        map.put("four", "4");
+        System.out.println("Map:" + map);
+
+        String result = map.search(2, (k, v) -> {
+            System.out.println("Key:" + k + " Value:" + v);
+            if (k.equals("three")) {
+                return v;
+            }
+            return null;
+        });
+        System.out.println("Result:" + result);
+    }
+    
+}

ConcurrentHashMapMethods34.java

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+import java.util.concurrent.ConcurrentHashMap;
+public class ConcurrentHashMapMethods34 {
+    //searchEntries​(long parallelismThreshold, Function<Map.Entry<K,​V>,​? extends U> searchFunction)
+
+    public static void main(String[] args) throws Exception {
+        ConcurrentHashMap<String, String> map = new ConcurrentHashMap<>();
+        map.put("one", "1");
+        map.put("two", "2");
+        map.put("three", "3");
+        map.put("four", "4");
+        System.out.println("Map:" + map);
+
+        String result = map.searchEntries(2, (entry) -> {
+            System.out.println("Key:" + entry.getKey() + " Value:" + entry.getValue());
+            if (entry.getKey().equals("three")) {
+                return entry.getValue();
+            }
+            return null;
+        });
+        System.out.println("Result:" + result);
+    }
+    
+}

ConcurrentHashMapMethods35.java

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+
+import java.util.concurrent.ConcurrentHashMap;
+public class ConcurrentHashMapMethods35 {
+
+    //searchKeys​(long parallelismThreshold, Function<? super K,​? extends U> searchFunction)
+
+    public static void main(String[] args) throws Exception {
+        ConcurrentHashMap<Integer, String> map = new ConcurrentHashMap<>();
+        map.put(1, "1");
+        map.put(2, "2");
+        map.put(3, "3");
+        map.put(4, "4");
+        System.out.println("Map:" + map);
+
+        Integer result = map.searchKeys(2, k -> {
+            System.out.println("Key:" + k);
+            if (k == 3) {
+                return k;
+            }
+            return null;
+        });
+        System.out.println("Result:" + result);
+    }
+    
+}

ConcurrentHashMapMethods36.java

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+import java.util.concurrent.ConcurrentHashMap;
+public class ConcurrentHashMapMethods36 {
+
+    //searchValues​(long parallelismThreshold, Function<? super V,​? extends U> searchFunction)
+
+    public static void main(String[] args) throws Exception {
+        ConcurrentHashMap<Integer, String> map = new ConcurrentHashMap<>();
+        map.put(1, "1");
+        map.put(2, "2");
+        map.put(3, "3");
+        map.put(4, "4");
+        System.out.println("Map:" + map);
+
+        String result = map.searchValues(2, v -> {
+            System.out.println("Value:" + v);
+            if (v.equals("3")) {
+                return v;
+            }
+            return null;
+        });
+        System.out.println("Result:" + result);
+    }
+    
+}