جاوا ۾ NumberFormatException ڇا آهي؟
مثال
اچو ته ان کي سمجهڻ لاءِ هڪ سادي مثال تي نظر وجهون.import java.util.Date;
public class NumberFormatExceptionTestDriver {
public static void main(String[] args) {
try {
// a valid Integer number in the input String
String inputString = "2550";
System.out.println("Integer.pareseInt(" + inputString + ") = " + Integer.parseInt(inputString));
} catch (NumberFormatException e) {
// java.lang.NumberFormatException will be thrown if the
// input string can not be converted to a valid integer
System.out.println("\nNumberFormatException thrown! " + e.getMessage());
}
try {
// a floating number in the input String
// use Float.parseFloat(inputString) to avoid this exception
String inputString = "255.0";
System.out.println("Integer.pareseInt(" + inputString + ") = " + Integer.parseInt(inputString));
} catch (NumberFormatException e) {
System.out.println("\nNumberFormatException thrown! " + e.getMessage());
}
try {
Date day = new Date();
// date containing alpha-numeric data in the input string
String inputString = day.toString();
System.out.println("Integer.pareseInt(" + inputString + ") = " + Integer.parseInt(inputString));
} catch (NumberFormatException e) {
System.out.println("\nNumberFormatException thrown! " + e.getMessage());
}
try {
// numbers with spaces in the input string
String inputString = "1 2 3";
System.out.println("Integer.pareseInt(" + inputString + ") = " + Integer.parseInt(inputString));
} catch (NumberFormatException e) {
System.out.println("\nNumberFormatException thrown! " + e.getMessage());
}
try {
// all letters in the input string
String inputString = "Lubaina Khan";
System.out.println("Integer.pareseInt(" + inputString + ") = " + Integer.parseInt(inputString));
} catch (NumberFormatException e) {
System.out.println("\nNumberFormatException thrown! " + e.getMessage());
}
}
}
پيداوار
Integer.pareseInt(2550) = 2550 NumberFormatException اڇلايو ويو! ان پٽ اسٽرنگ لاءِ: "255.0" نمبر فارميٽ ايڪسيپشن اڇلايو ويو! ان پٽ اسٽرنگ لاءِ: "بدھ 11 آگسٽ 08:18:21 PKT 2021" NumberFormatException اڇلايو ويو! ان پٽ اسٽرنگ لاءِ: "1 2 3" NumberFormatException اڇلايو ويو! ان پٽ اسٽرنگ لاءِ: "لبينا خان"
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