Java Index Parameters: from - including, to - excluding

String string1 = "Hello World";

String substring = string1.substring(0,5);

After this code is executed the substring variable will contain the string Hello.
The substring() method takes two parameters. The first is the character index of the first character to be included in the substring. The second is the index of the character after the last character to be included in the substring. Remember that. The parameters mean "from - including, to - excluding". This can be a little confusing until you memorize it.
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