Convert method name to field name - Java Reflection

Java examples for Reflection:Field

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Description

Convert method name to field name

Demo Code


//package com.java2s;

import java.util.Locale;

public class Main {
    public static void main(String[] argv) throws Exception {
        String methodName = "java2s.com";
        System.out.println(m2f(methodName));
    }/*from w w w.  j a  v  a 2 s .c o m*/

    public static final int SET_START = "set".length();

    public static final int SET_END = SET_START + 1;

    public static final int IS_START = "is".length();

    public static final int IS_END = IS_START + 1;

    public static String m2f(String methodName) {
        if (methodName.startsWith("set") || methodName.startsWith("get")) {
            return methodName.substring(SET_START, SET_END).toLowerCase(
                    Locale.CHINA)
                    + methodName.substring(SET_END);
        } else if (methodName.startsWith("is")) {
            return methodName.substring(IS_START, IS_END).toLowerCase(
                    Locale.CHINA)
                    + methodName.substring(IS_END);
        } else {
            throw new IllegalArgumentException(
                    "method not start with get or is.");
        }
    }
}

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