Java Example - String Comparison

In the following example, we use the string functions compareTo (string), compareToIgnoreCase(String) and compareTo(object string) to compare two strings and return the ASCII difference of the first letter in the string.

The example code is as follows:

//StringCompareEmp.java 文件public class StringCompareEmp{
   public static void main(String args[]){
      String str = "Hello World";
      String anotherString = "hello world";
      Object objStr = str;

      System.out.println( str.compareTo(anotherString) );
      System.out.println( str.compareToIgnoreCase(anotherString) );  //忽略大小写
      System.out.println( str.compareTo(objStr.toString()));
   }}

The output result of the above code example is:

-32
0
0

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