Notes
Notes - notes.io |
// Convert the number to a String
String numStr = Integer.toString(num);
// If K is larger than the number of digits, just return the whole number
if (k >= numStr.length()) {
return num;
}
// Get the first K characters
String resultStr = numStr.substring(0, k);
// Convert it back to an integer
return Integer.parseInt(resultStr);
}
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