equalsignorecase 和equals的区别
equalsignorecase 和equals的区别?
equals比较时,要比较大小写是否相同,
而equalsignorecase,忽略了大小写,ignore就是忽略的意思
如,abc与Abc , equals返回false,
而equalsignorecase返回true
下面的例子说明了equals( )和equalsIgnoreCase( )方法：
class equalsDemo {
public static void main(String args[]) {
String s1 = "Hello" ;
String s2 = "Hello" ;
String s3 = "Good-bye" ;
String s4 = "HELLO" ;
System.out.println(s1 + " equals " + s2 + " -> " +
s1.equals(s2));
System.out.println(s1 + " equals " + s3 + " -> " +
s1.equals(s3));
System.out.println(s1 + " equals " + s4 + " -> " +
s1.equals(s4));
System.out.println(s1 + " equalsIgnoreCase " + s4 + " -> " +
s1.equalsIgnoreCase(s4));
}
}
该程序的输出如下所示：
Hello equals Hello -> true
Hello equals Good-bye -> false
Hello equals HELLO -> false
Hello equalsIgnoreCase HELLO -> true