Create arraytostring.java

arraytostring.java

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+import java.util.stream.Collectors;
+
+/*
+ * A Java program to convert an array to string.
+ */
+
+public class ArrayToString {
+
+    public static void main(String[] args) {
+
+        String[] stringArray = { "My", "name", "is", "Gaurav", "!" };
+
+        // 1. Using the Arrays.toString() method
+        String string1 = convertArrayToStringUsingToString(stringArray);
+        System.out.println("An array converted to string using Arrays.toString(): " + string1);
+
+        // 2. Using the StringBuilder.append() method
+        String string2 = convertArrayToStringUsingAppend(stringArray);
+        System.out.println("An array converted to string using StringBuilder.append(): " + string2);
+
+        // 3. Using the String.join() method
+        String string3 = convertArrayToStringUsingJoin(stringArray);
+        System.out.println("An array converted to string using String.join(): " + string3);
+
+        // 4. Using the Collectors.joining() method
+        String string4 = convertArrayToStringUsingJoining(stringArray);
+        System.out.println("An array converted to string using Collectors.joining(): " + string4);
+
+    }
+
+    // 1. Using the Arrays.toString() method
+    public static String convertArrayToStringUsingToString(String[] stringArray) {
+        return Arrays.toString(stringArray);
+    }
+
+    // 2. Using the StringBuilder.append() method
+    public static String convertArrayToStringUsingAppend(String[] stringArray) {
+        StringBuilder stringBuilder = new StringBuilder();
+
+        for (int i = 0; i < stringArray.length; i++) {
+            stringBuilder.append(stringArray[i]);
+        }
+        return stringBuilder.toString();
+    }
+
+    // 3. Using the String.join() method
+    public static String convertArrayToStringUsingJoin(String[] stringArray) {
+        String str = String.join(" ", stringArray);
+        return str;
+    }
+
+    // 4. Using the Collectors.joining() method
+    public static String convertArrayToStringUsingJoining(String[] stringArray) {
+        String str = Arrays.stream(stringArray).collect(Collectors.joining());
+        return str;
+    }
+
+}