메소드

package test01;
public class Test {
      static int a = 0;
      int c = 0;
      
      Test()
      {
            this.a++;
            this.c++;
      }
      
      public int getNum(int num)
      {
            return num;
      }
      
      public static class test2
      {
            int p = 0;
            String str = "aaaaa";
            int tmpNum;
            
            public void setNum(int num)
            {
                  this.tmpNum = num;
            }
      }
      
      public void say_nick(String nick)
      {
            //equals 같은경우
            if("fool".equals(nick))
            {
                  return;
            }
            System.out.println("별명은 "+ nick + " 입니다.");
      }
      
      public void say_nick2(String nick)
      {
            if("fool"== nick)
            {
                  return;
            }
            System.out.println("별명은 "+ nick + " 입니다.");
      }
      
      public void vartest(int a)
      {
        a++;
    }
      
      public int vartest2(int a)
      {
            a++;
            return a;
      }
      
      public static void main(String[] args) {
            
            int b = a;
            Test d = new Test();
            System.out.println("d.a값1 = " + d.a);
            System.out.println("d.c값1 = " + d.c);
            int e = d.getNum(50);
            test2 f = new test2();
            
            f.setNum(100);
            
            int ee = a;
            
            Test k = new Test();
            
            System.out.println("b값 = " + b);
            System.out.println("ee값 = " + ee);
            System.out.println("d.a값2 = " + d.a);
            System.out.println("d.c값2 = " + d.c);
            System.out.println("e값 = " + e);
            System.out.println("f.p값 = " + f.p);
            System.out.println("f.str값 = " + f.str);
            System.out.println("f.tmpNum값 = " + f.tmpNum);
            System.out.println("k.a값 = " + k.a);
            System.out.println("k.c값 = " + k.c);
            
            d.say_nick("fool");
            d.say_nick2("fooldd");
            
            int tr = 1;
            d.vartest(tr);
            int gg = d.vartest2(1);
            System.out.println(tr);
            System.out.println(gg);
            
      }
}