Java String equalsIgnoreCase() 方法

Java Strings 类

equalsIgnoreCase() 方法将此字符串与另一个字符串进行比较，忽略大小写。 如果两个字符串的长度相同，并且两个字符串中对应的字符不区分大小写，则认为它们相等。

语法

public boolean equalsIgnoreCase(String anotherString)

参数

anotherString - 与此 String 进行比较的字符串。

返回值

如果参数不为 null 且字符串相等，则此方法返回 true，忽略大小写； 否则为假。

示例

public class Main {

   public static void main(String args[]) {
      String Str1 = new String("This is really not immutable!!");
      String Str2 = Str1;
      String Str3 = new String("This is really not immutable!!");
      String Str4 = new String("This IS REALLY NOT IMMUTABLE!!");
      boolean retVal;

      retVal = Str1.equals( Str2 );
      System.out.println("Returned Value = " + retVal );

      retVal = Str1.equals( Str3 );
      System.out.println("Returned Value = " + retVal );

      retVal = Str1.equalsIgnoreCase( Str4 );
      System.out.println("Returned Value = " + retVal );
   }
}

运行示例

上面示例编译运行结果如下

Returned Value = true
Returned Value = true
Returned Value = true

Java Strings 类