Convert String to Int Java with Error Handling

1 year ago
Isabella Edwards
1 minute

In Java, you can convert a string to an integer using the Integer.parseInt() method. This method takes a string as a parameter and returns the corresponding integer value.

Here is an example:

String str = "12345";
try {
    int num = Integer.parseInt(str);
    System.out.println(num);
} catch (NumberFormatException e) {
    System.out.println("字符串无法转换为int型");
}

In the example above, we used the Integer.parseInt() method to convert the string “12345” into an integer value and store it in the variable num. If the string cannot be converted to an integer, a NumberFormatException exception will be thrown. You can use a try-catch statement to catch this exception and handle errors accordingly.

When using the Integer.parseInt() method, the string must represent an integer. If the string contains non-numeric characters, a NumberFormatException will be thrown.

bannerAds