public void push (K key, V value) { push (key, value, -1); } /**
public void testPush() { sp.push ("PUSH", "ONE"); sp.push ("PUSH", "TWO"); sp.push ("PUSH", "THREE"); sp.out ("PUSH", "FOUR"); assertEquals ("THREE", sp.rdp ("PUSH")); assertEquals ("THREE", sp.inp ("PUSH")); assertEquals ("TWO", sp.inp ("PUSH")); assertEquals ("ONE", sp.inp ("PUSH")); assertEquals ("FOUR", sp.inp ("PUSH")); assertNull (sp.rdp ("PUSH")); } public void testExist() {