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package java.lang;

Thrown to indicate that the application has attempted to convert a string to one of the numeric types, but that the string does not have the appropriate format.
See Also:
  • parseInt.parseInt(String)
Since: 1.0
/** * Thrown to indicate that the application has attempted to convert * a string to one of the numeric types, but that the string does not * have the appropriate format. * * @see java.lang.Integer#parseInt(String) * @since 1.0 */
public class NumberFormatException extends IllegalArgumentException { @java.io.Serial static final long serialVersionUID = -2848938806368998894L;
Constructs a NumberFormatException with no detail message.
/** * Constructs a {@code NumberFormatException} with no detail message. */
public NumberFormatException () { super(); }
Constructs a NumberFormatException with the specified detail message.
Params:
  • s – the detail message.
/** * Constructs a {@code NumberFormatException} with the * specified detail message. * * @param s the detail message. */
public NumberFormatException (String s) { super (s); }
Factory method for making a NumberFormatException given the specified input which caused the error.
Params:
  • s – the input causing the error
/** * Factory method for making a {@code NumberFormatException} * given the specified input which caused the error. * * @param s the input causing the error */
static NumberFormatException forInputString(String s, int radix) { return new NumberFormatException("For input string: \"" + s + "\"" + (radix == 10 ? "" : " under radix " + radix)); }
Factory method for making a NumberFormatException given the specified input which caused the error.
Params:
  • s – the input causing the error
  • beginIndex – the beginning index, inclusive.
  • endIndex – the ending index, exclusive.
  • errorIndex – the index of the first error in s
/** * Factory method for making a {@code NumberFormatException} * given the specified input which caused the error. * * @param s the input causing the error * @param beginIndex the beginning index, inclusive. * @param endIndex the ending index, exclusive. * @param errorIndex the index of the first error in s */
static NumberFormatException forCharSequence(CharSequence s, int beginIndex, int endIndex, int errorIndex) { return new NumberFormatException("Error at index " + (errorIndex - beginIndex) + " in: \"" + s.subSequence(beginIndex, endIndex) + "\""); } }