K.java

class K {
	private int c;

	public int getC() {
		return c;
	}

	public void setC(int c) {
		this.c = c;
	}
}

T.class

Compiled from "T.java"
class T {
  T();
    Code:
       0: aload_0
       1: invokespecial #1                  // Method java/lang/Object."<init>":()V
       4: return

  public static void main(java.lang.String[]);
    Code:
       0: new           #2                  // class K, new K() start
       3: dup
       4: invokespecial #3                  // Method K."<init>":()V
       7: astore_1                          // source = new K()
       8: aload_1                           // new K() end, prepare `source`
       9: astore_2                          // k = source;
      10: aload_2                           // prepare `k`
      11: invokevirtual #4                  // Method K.getC:()I
      14: pop
      15: return
}

T.java

class T {
	public static void main(String[] args) {
		K source = new K();

		K k = source;
		k.getC();
	}
}

T2.class

Compiled from "T2.java"
class T2 {
  T2();
    Code:
       0: aload_0
       1: invokespecial #1                  // Method java/lang/Object."<init>":()V
       4: return

  public static void main(java.lang.String[]);
    Code:
       0: new           #2                  // class K
       3: dup
       4: invokespecial #3                  // Method K."<init>":()V
       7: astore_1
       8: aload_1
       9: astore_2
      10: aload_2
      11: invokevirtual #4                  // Method K.getC:()I
      14: pop
      15: return
}

T2.java

class T2 {
	public static void main(String[] args) {
		K source = new K();

		K k;
		k = source;
		k.getC();
	}
}

T3.class

Compiled from "T3.java"
class T3 {
  static K k;

  T3();
    Code:
       0: aload_0
       1: invokespecial #1                  // Method java/lang/Object."<init>":()V
       4: return

  public static void main(java.lang.String[]);
    Code:
       0: new           #2                  // class K
       3: dup
       4: invokespecial #3                  // Method K."<init>":()V
       7: astore_1
       8: aload_1
       9: putstatic     #4                  // Field k:LK;
      12: getstatic     #4                  // Field k:LK;
      15: invokevirtual #5                  // Method K.getC:()I
      18: pop
      19: return
}

T3.java

class T3 {
	static K k;
	
	public static void main(String[] args) {
		K source = new K();

		k = source;
		k.getC();
	}
}