joining() terminal Operations

spdpiyush · spdpiyush · commit ca1f373f14e8 · 2025-03-05T14:24:13.000+05:30
diff --git a/Modern-Java-Examples/src/com/learn/streams_terminal/StreamsJoiningExample.java b/Modern-Java-Examples/src/com/learn/streams_terminal/StreamsJoiningExample.java
@@ -0,0 +1,55 @@
+package com.learn.streams_terminal;
+
+import com.learn.data.Student;
+import com.learn.data.StudentDataBase;
+
+import java.util.stream.Collectors;
+
+public class StreamsJoiningExample {
+
+    public static void main(String[] args) {
+
+        System.out.println("joining1 : " + joining1());
+
+        System.out.println("joining2 : " + joining2());
+
+        System.out.println("joining3 : " + joining3());
+    }
+
+    /**
+     * <p>
+     *     Concatenate all the names that are in StudentDataBase and return as result.
+     * </p>
+     * @return
+     */
+    public static String joining1() {
+        return StudentDataBase.getAllStudents().stream()
+                .map(Student::getName)
+                .collect(Collectors.joining());
+    }
+
+
+    /**
+     * <p>
+     *     Concatenate all the names by passing a delimiter.
+     * </p>
+     * @return
+     */
+    public static String joining2() {
+        return StudentDataBase.getAllStudents().stream()
+                .map(Student::getName)
+                .collect(Collectors.joining(" "));
+    }
+
+    /**
+     * <p>
+     *     Concatenate all the names by passing Prefix and Suffix.
+     * </p>
+     * @return
+     */
+    public static String joining3() {
+        return StudentDataBase.getAllStudents().stream()
+                .map(Student::getName)
+                .collect(Collectors.joining(" , ", "[  ", " ]"));
+    }
+}
diff --git a/README.md b/README.md
@@ -42,6 +42,8 @@ This repository contains the basic &amp; advance level examples related to Java
     * [sum(), max(), min() and average()](Modern-Java-Examples/src/com/learn/numericstreams/NumericStreamAggregateExample.java)
     * [boxing, unboxing and mapToInt()](Modern-Java-Examples/src/com/learn/numericstreams/NumericStreamsBoxingUnboxingExample.java)
     * [mapToObj(), mapToLong() and mapToDouble()](Modern-Java-Examples/src/com/learn/numericstreams/NumericStreamsMapExample.java)
+  * [ Stream Terminal Operations ](Modern-Java-Examples/src/com/learn/streams_terminal)
+    * [ joining()](Modern-Java-Examples/src/com/learn/streams_terminal/StreamsJoiningExample.java)
     
 
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