متد valueOf()‎ در جاوا

class Main {
  public static void main(String[] args) {

    double interest = 923.234d;

    // convert double to string
    System.out.println(String.valueOf(interest));

  }
}

// Output: 923.234
class Main {
  public static void main(String[] args) {

    double interest = 923.234d;

    // convert double to string
    System.out.println(String.valueOf(interest));

  }
}

// Output: 923.234اجرای کد

String.valueOf(boolean b)
String.valueOf(char c)
String.valueOf(char[] data)
String.valueOf(double d)
String.valueOf(float f)
String.valueOf(int b)
String.valueOf(long l)
String.valueOf(Object o)

class Main {
  public static void main(String[] args) {
    int a = 5;
    long l = -2343834L;
    float f = 23.4f;
    double d = 923.234d;

    // convert numbers to strings
    System.out.println(String.valueOf(a));  // "5"
    System.out.println(String.valueOf(l));  // "-2343834"
    System.out.println(String.valueOf(f));  // "23.4"

    System.out.println(String.valueOf(d));  // "923.234"
  }
}
class Main {
  public static void main(String[] args) {
    int a = 5;
    long l = -2343834L;
    float f = 23.4f;
    double d = 923.234d;

    // convert numbers to strings
    System.out.println(String.valueOf(a));  // "5"
    System.out.println(String.valueOf(l));  // "-2343834"
    System.out.println(String.valueOf(f));  // "23.4"

    System.out.println(String.valueOf(d));  // "923.234"
  }
}اجرای کد

class Main {
  public static void main(String[] args) {
    char c = 'J';
    char ch[] = {'J', 'a', 'v', 'a'};

    // convert char to string
    System.out.println(String.valueOf(c));  // "J"


    // convert char array to string
    System.out.println(String.valueOf(ch));  // "Java"

  }
}
class Main {
  public static void main(String[] args) {
    char c = 'J';
    char ch[] = {'J', 'a', 'v', 'a'};

    // convert char to string
    System.out.println(String.valueOf(c));  // "J"


    // convert char array to string
    System.out.println(String.valueOf(ch));  // "Java"

  }
}اجرای کد

valueOf(char[] data, int offset, int length)

class Main {
  public static void main(String[] args) {
    char ch[] = {'p', 'r', 'o', 'g', 'r', 'a', 'm'};
    int offset = 2;
    int length = 4;
    String result;

    // subarray {'o', 'g', 'r', 'm'} is converted to string
    result = String.valueOf(ch, offset, length);

    System.out.println(result);  // "ogrm"
  }
}
class Main {
  public static void main(String[] args) {
    char ch[] = {'p', 'r', 'o', 'g', 'r', 'a', 'm'};
    int offset = 2;
    int length = 4;
    String result;

    // subarray {'o', 'g', 'r', 'm'} is converted to string
    result = String.valueOf(ch, offset, length);

    System.out.println(result);  // "ogrm"
  }
}اجرای کد

import java.util.ArrayList;

class Main {
  public static void main(String[] args) {

    ArrayList<String> languages = new ArrayList<String>();
    languages.add("Java");
    languages.add("Python");
    languages.add("Kotlin");

    String result;

    // Output: "[Java, Python, Kotlin]"
    result = String.valueOf(languages);

    System.out.println(result);
  }
}
import java.util.ArrayList;

class Main {
  public static void main(String[] args) {

    ArrayList<String> languages = new ArrayList<String>();
    languages.add("Java");
    languages.add("Python");
    languages.add("Kotlin");

    String result;

    // Output: "[Java, Python, Kotlin]"
    result = String.valueOf(languages);

    System.out.println(result);
  }
}اجرای کد