68 lines
2.1 KiB
Java
68 lines
2.1 KiB
Java
//: typeinfo/ShowMethods.java
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// ©2015 MindView LLC: see Copyright.txt
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// Using reflection to show all the methods of a class,
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// even if the methods are defined in the base class.
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// {Args: ShowMethods}
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import java.lang.reflect.*;
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import java.util.regex.*;
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import static com.mindviewinc.util.Print.*;
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public class ShowMethods {
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private static String usage =
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"usage:\n" +
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"ShowMethods qualified.class.name\n" +
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"To show all methods in class or:\n" +
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"ShowMethods qualified.class.name word\n" +
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"To search for methods involving 'word'";
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private static Pattern p = Pattern.compile("\\w+\\.");
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public static void main(String[] args) {
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if(args.length < 1) {
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print(usage);
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System.exit(0);
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}
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int lines = 0;
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try {
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Class<?> c = Class.forName(args[0]);
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Method[] methods = c.getMethods();
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Constructor[] ctors = c.getConstructors();
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if(args.length == 1) {
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for(Method method : methods)
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print(
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p.matcher(method.toString()).replaceAll(""));
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for(Constructor ctor : ctors)
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print(p.matcher(ctor.toString()).replaceAll(""));
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lines = methods.length + ctors.length;
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} else {
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for(Method method : methods)
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if(method.toString().contains(args[1])) {
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print(
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p.matcher(method.toString()).replaceAll(""));
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lines++;
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}
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for(Constructor ctor : ctors)
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if(ctor.toString().contains(args[1])) {
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print(p.matcher(
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ctor.toString()).replaceAll(""));
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lines++;
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}
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}
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} catch(ClassNotFoundException e) {
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print("No such class: " + e);
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}
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}
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} /* Output:
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public static void main(String[])
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public final void wait() throws InterruptedException
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public final void wait(long,int) throws
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InterruptedException
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public final native void wait(long) throws
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InterruptedException
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public boolean equals(Object)
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public String toString()
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public native int hashCode()
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public final native Class getClass()
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public final native void notify()
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public final native void notifyAll()
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public ShowMethods()
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*///:~
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