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Using Arrays.toString() method
// Using Arrays.toString()
public static String convertArrayToString(String[] strArray) {
return Arrays.toString(strArray);
}
[one, two, three]
Using StringBuilder.append() method
// using StringBuilder.append()
public static String convertArrayToStringMethod(String[] strArray) {
StringBuilder stringBuilder = new StringBuilder();
for (int i = 0; i < strArray.length; i++) {
stringBuilder.append(strArray[i]);
}
return stringBuilder.toString();
}
onetwothree
Using String.join() method
// Using String.join() method
public static String convertArrayToStringUsingStreamAPI(String[] strArray) {
String joinedString = String.join(" ", strArray);
return joinedString;
}
one two three
Using Collectors.joining() method from the Java Streams AP
// Using Stream API and Collectors
public static String convertArrayToStringUsingCollectors(String[] strArray) {
String joinedString = Arrays.stream(strArray)
.collect(Collectors.joining());
return joinedString;
}
onetwothree
Complete Example
package corejava;
import java.util.Arrays;
import java.util.stream.Collectors;
public class ArrayToStringConvertExample {
public static void main(String[] args) {
String[] strArray = {
"one",
"two",
"three"
};
System.out.println(convertArrayToString(strArray));
System.out.println(convertArrayToStringMethod(strArray));
System.out.println(convertArrayToStringUsingStreamAPI(strArray));
System.out.println(convertArrayToStringUsingCollectors(strArray));
// convert string to array
String[] strArray1 = "javaguides".split(" ");
}
// Using Arrays.toString()
public static String convertArrayToString(String[] strArray) {
return Arrays.toString(strArray);
}
// using StringBuilder.append()
public static String convertArrayToStringMethod(String[] strArray) {
StringBuilder stringBuilder = new StringBuilder();
for (int i = 0; i < strArray.length; i++) {
stringBuilder.append(strArray[i]);
}
return stringBuilder.toString();
}
// Using String.join() method
public static String convertArrayToStringUsingStreamAPI(String[] strArray) {
String joinedString = String.join(" ", strArray);
return joinedString;
}
// Using Stream API and Collectors
public static String convertArrayToStringUsingCollectors(String[] strArray) {
String joinedString = Arrays.stream(strArray)
.collect(Collectors.joining());
return joinedString;
}
}
[one, two, three]
onetwothree
one two three
onetwothree
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