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Método de comparación de caracteres Java ()

El método compare(char x, char y) de la clase Character se utiliza para comparar dos valores de caracteres numéricamente. El valor final devuelto es similar al que devolvería:

 Character.valueoOf(x).compareTo(Character.valueOf(y)) 

Sintaxis

 public static intcompare(char x, char y) 

Parámetro

El método anterior requiere dos parámetros:

  • char x, que es el primer carácter a comparar
  • char y cuál es el segundo carácter a comparar

Valor de retorno

El método compare(char x, char y) de la clase de carácter devuelve

  • un valor 0 si x==y
  • un valor menor que 0 si x
  • un valor mayor que 0 si x>y.

Ejemplo 1

 public class JavaCharacterCompareExample1 { public static void main(String[] args) { char firstValue = 'A'; char secondValue = 'B'; // compare the first char to the second int compareOneTwo = Character.compare(firstValue, secondValue); if (compareOneTwo> 0) { System.out.println('First value is greater than second value'); } else { System.err.println('First value is less than second value.'); } } } 
Pruébalo ahora

Producción:

 First value is less than the second value. 

Ejemplo 2

 public class JavaCharacterCompareExample2{ public static void main(String[] args) { char firstValue = &apos;1&apos;; char secondValue = &apos;2&apos;; // compare the first char to the second int comp = Character.compare(firstValue, secondValue); if (comp<0) 1 { system.err.println('value is greater than the value 2.'); } else less second value2.'); < pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> Value 1 is greater than the value 2. </pre> <h2>Example 3</h2> <pre> public class JavaCharacterCompareExample3 { public static void main(String[] args) { char firstVal = &apos;J&apos;; char secondVal =&apos;J&apos;; char thirdVal = &apos;M&apos;; // compare the first char to the second CHAR int compareOneTwo = Character.compare(firstVal, secondVal); // compare the first char to the third int compareOneThree = Character.compare(firstVal, thirdVal); if (compareOneTwo == 0) { System.out.println(&apos;First and second values are equal.&apos;); } else if (compareOneTwo&gt; 0) { System.out.println(&apos;First value is greater than the second value.&apos;); } else { System.out.println(&apos;First value is less than the second value.&apos;); } if (compareOneThree == 0) { System.out.println(&apos;First and third value are equal.&apos;); } else if (compareOneTwo&gt; 0) { System.out.println(&apos;First value is greater than the third value.&apos;); } else { System.out.println(&apos;First value is less than the third value.&apos;); } } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> First and second values are equal. First value is less than the third value. </pre></0)>

Ejemplo 3

 public class JavaCharacterCompareExample3 { public static void main(String[] args) { char firstVal = &apos;J&apos;; char secondVal =&apos;J&apos;; char thirdVal = &apos;M&apos;; // compare the first char to the second CHAR int compareOneTwo = Character.compare(firstVal, secondVal); // compare the first char to the third int compareOneThree = Character.compare(firstVal, thirdVal); if (compareOneTwo == 0) { System.out.println(&apos;First and second values are equal.&apos;); } else if (compareOneTwo&gt; 0) { System.out.println(&apos;First value is greater than the second value.&apos;); } else { System.out.println(&apos;First value is less than the second value.&apos;); } if (compareOneThree == 0) { System.out.println(&apos;First and third value are equal.&apos;); } else if (compareOneTwo&gt; 0) { System.out.println(&apos;First value is greater than the third value.&apos;); } else { System.out.println(&apos;First value is less than the third value.&apos;); } } } 
Pruébalo ahora

Producción:

 First and second values are equal. First value is less than the third value.