学步园

public class TestClass {
	String iStr;
	int i;
	public static void main(String[] args) {
	    
	    TestClass tc = new TestClass();
	    
	    String lStr; // local variable
	    
	    int i; // local variable
	    
	    System.out.println("tc.iStr = " + tc.iStr);
	    
	    System.out.println("tc.i = " + tc.i);
	    
//	    System.out.println("lStr = " + lStr);//报错
	    
//	    System.out.println("i = " + i);//报错
	    
	  }
}