Java Character equals()用法及代码示例

字符类的 equals(Object obj) 方法将对象与指定的对象进行比较。当且仅当参数不为 null 并且 Character 对象具有与对象所表示的相同的 char 值时，结果才为真。

用法

public boolean equals(Object obj)

参数

上述方法只需要一个参数：

需要比较的对象。

返回值

如果对象相同，则 equals(Object obj) 方法返回 true。否则，该方法返回 false。

例子1

public class JavaCharcterEqualsExample1 {
     public static void main(String[] args) {
         //Create a Character
          Character charValue = new Character('A');
          // Create an Object
        Object obj = new Character('A');
          // Test the equality for two values
        if (charValue.equals(obj)) {
        System.err.println("They are equal.");
        }
            else {
        System.err.println("They are not equal.");
             }
          }  
     }

输出：

They are equal.

例子2

public class JavaCharacterEqualsExample2 {
     public static void main(String[] args) {
    //Create a Character
        Character charValue = new Character('B');
      // Create an Object
        Object obj1 = new Character('C');
     // Test the equality for two values
        if (charValue.equals(obj1)) {
        System.err.println("They are equal.");
        }
           else {
        System.err.println("They are not equal.");
            }
             }  
           }

输出：

They are not equal.

例子3

public class JavaCharacterEqualsExample3 {
 public static void main(String[] args) {
    //Create a Character
      Character charValue = new Character('1');
     // Create an Object
      
      Object obj = new Character('1');
     // Test the equality for two values
       if (charValue.equals(obj)) {
    System.err.println("The numbers are equal.");
    }
     else {
    System.err.println("The numbers are not equal.");
    }
     }  
   }

输出：

The numbers are equal.

示例 4

public class JavaCharacterEqualsExample4 {
 public static void main(String[] args) {
    //Create a Character
      Character charValue = new Character('2');
     // Create an Object
      Object obj = new Character('3');
     // Test the equality for two values
       if (charValue.equals(obj)) {
    System.err.println("The numbers are equal.");
    }
        else {
    System.err.println("The numbers are not equal.");
     	}
     }  
   }

输出：

The numbers are not equal.

相关用法

注：本文由纯净天空筛选整理自 Java Character equals() Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。