import java.util.*;

public class TestLambda {

 public static interface ThisRunnable {
  public void run(TestLambda th);
 }

 private final String id = UUID.randomUUID().toString();

 private void do1() {
  System.out.println(1);
 }

 private void doId() {
  System.out.println(id);
 }

 private static final Map<Object,ThisRunnable> DEEDS_MAP= new HashMap<Object,ThisRunnable>();

 static {
  DEEDS_MAP.put("!",(TestLambda th) -> {th.doId();});
  DEEDS_MAP.put("1",(TestLambda th) -> {th.do1();});
 }

 public void doSomething(Object o) {
  DEEDS_MAP.get(o).run(this);
 }

 public static void main(String[] args) {
  TestLambda tl = new TestLambda();
  if (args.length>0) {
   tl.doSomething(args[0]);
  }
  tl = new TestLambda();
  if (args.length>1) {
   tl.doSomething(args[1]);
  }
 }

}

import java.util.*;
import java.util.function.*;
import java.util.regex.*;

public class TestLambda {

 private int i;

 private void add(final String s) {
  i+=Integer.parseInt(s);
 }

 private void sub(final String s) {
  i-=Integer.parseInt(s);
 }

 private void print() {
  System.out.println(i);
 }

 public static class ParamHolder {
  public final TestLambda th;
  public final Matcher m;
  public ParamHolder(final TestLambda th,final Matcher m){
   this.th=th;
   this.m=m;
  }
 }

 public static class FuncHolder {
  public final Pattern pattern;
  public final Consumer<ParamHolder> func;
  public FuncHolder(final Pattern pat,final Consumer<ParamHolder> func){
   this.pattern=pat;
   this.func=func;
  }
 }

 private static final List<FuncHolder> DEEDS_MAP= new ArrayList<FuncHolder>();

 static {
  DEEDS_MAP.add(new FuncHolder(Pattern.compile("\\+\\s+([0-9]+)"), (t) -> t.th.add(t.m.group(1))));
  DEEDS_MAP.add(new FuncHolder(Pattern.compile("добавь\\s+([0-9]+)"), (t) -> t.th.add(t.m.group(1))));
  DEEDS_MAP.add(new FuncHolder(Pattern.compile("\\-\\s+([0-9]+)"), (t) -> t.th.sub(t.m.group(1))));
  DEEDS_MAP.add(new FuncHolder(Pattern.compile("вычти\\s+([0-9]+)"), (t) -> t.th.sub(t.m.group(1))));
  DEEDS_MAP.add(new FuncHolder(Pattern.compile("\\="), (t) -> t.th.print()));
 }

 public void doSomething(String o) {
  final int l = DEEDS_MAP.size();
  for (int i =0;i<l;i++) {
   final FuncHolder h = DEEDS_MAP.get(i);
   final Matcher m = h.pattern.matcher(o);
   if (m.matches()) h.func.accept(new ParamHolder(this,m));
  }
 }

 public static void main(String[] args) {
  TestLambda tl = new TestLambda();
  for (String s : args)
   tl.doSomething(s);
 }
}