Simple Solution Without Using Extra Space
UPvote If you got it\n\n\nclass Solution {\n    public boolean checkIfPangram(String sentence) {\n        \n        if(sentence.length()<26 || sentence == null)
**UPvote If you got it**\n\n```\nclass Solution {\n    public boolean checkIfPangram(String sentence) {\n        \n        if(sentence.length()<26 || sentence == null)\n            return false;\n        \n        for(char i=97;i<=122;i++){\n            if(!sentence.contains(String.valueOf(i)))\n                return false;\n        }\n        return true;\n}\n}\n```
['Java']