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package java.util;

Unchecked exception thrown when there is a format specifier which does not have a corresponding argument or if an argument index refers to an argument that does not exist.

Unless otherwise specified, passing a null argument to any method or constructor in this class will cause a NullPointerException to be thrown.

Since:1.5
/** * Unchecked exception thrown when there is a format specifier which does not * have a corresponding argument or if an argument index refers to an argument * that does not exist. * * <p> Unless otherwise specified, passing a {@code null} argument to any * method or constructor in this class will cause a {@link * NullPointerException} to be thrown. * * @since 1.5 */
public class MissingFormatArgumentException extends IllegalFormatException { private static final long serialVersionUID = 19190115L; private String s;
Constructs an instance of this class with the unmatched format specifier.
Params:
  • s – Format specifier which does not have a corresponding argument
/** * Constructs an instance of this class with the unmatched format * specifier. * * @param s * Format specifier which does not have a corresponding argument */
public MissingFormatArgumentException(String s) { if (s == null) throw new NullPointerException(); this.s = s; }
Returns the unmatched format specifier.
Returns: The unmatched format specifier
/** * Returns the unmatched format specifier. * * @return The unmatched format specifier */
public String getFormatSpecifier() { return s; } public String getMessage() { return "Format specifier '" + s + "'"; } }