Java custom exception handling

Custom exceptions provide you the flexibility to add attributes and methods that are not part of a standard Java exception.

These can store additional information, like an application-specific error code, or provide utility methods that can be used to handle or present the exception to a user

Example: In the example, we have created a user-defined exception class

Java

handledexception.java

public class HandledException extends Exception {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private String code;

    public HandledException(String code, String message) {
        super(message);
        this.setCode(code);
    }

    public HandledException(String code, String message, Throwable cause) {
        super(message, cause);
        this.setCode(code);
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }
}

In the above example, we are creating a custom exception or user-defined exception by extending the base Exception class.

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