The concat() method of Bytes Class in the Guava library is used to concatenate the values of many arrays into a single array. These byte arrays to be concatenated are specified as parameters to this method.
For example: concat(new byte[] {1, 2}, new byte[] {3, 4, 5}, new byte[] {6, 7}
returns the array {1, 2, 3, 4, 5, 6, 7}.
Syntax:
public static byte[] concat(byte[]... arrays)
Parameter: This method accepts arrays as parameter which is the byte arrays to be concatenated by this method.
Return Value: This method returns a single byte array which contains all the specified byte array values in its original order.
Below programs illustrate the use of concat() method:
Example 1:
// Java code to show implementation of // Guava's Bytes.concat() method import com.google.common.primitives.Bytes; import java.util.Arrays; class GFG { // Driver's code public static void main(String[] args) { // Creating 2 Byte arrays byte[] arr1 = { 1, 2, 3, 4, 5 }; byte[] arr2 = { 6, 2, 7, 0, 8 }; // Using Bytes.concat() method to combine // elements from both arrays into a single array byte[] res = Bytes.concat(arr1, arr2); // Displaying the single combined array System.out.println(Arrays.toString(res)); } } |
[1, 2, 3, 4, 5, 6, 2, 7, 0, 8]
Example 2:
// Java code to show implementation of // Guava's Bytes.concat() method import com.google.common.primitives.Bytes; import java.util.Arrays; class GFG { // Driver's code public static void main(String[] args) { // Creating 4 byte arrays byte[] arr1 = { 1, 2, 3 }; byte[] arr2 = { 4, 5 }; byte[] arr3 = { 6, 7, 8 }; byte[] arr4 = { 9, 0 }; // Using Bytes.concat() method to combine // elements from both arrays into a single array byte[] res = Bytes.concat(arr1, arr2, arr3, arr4); // Displaying the single combined array System.out.println(Arrays.toString(res)); } } |
[1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
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