share.java

java课程的资料以及实验的代码

/*
 *Share.java:建立共享属性和方法。
 */
 
import java.awt.*;
import javax.swing.*;
public class Share {
	static String operator = "";
	static String condition = "";
	static boolean isleaf = true;
	static boolean verify (JTextField t) {
		try {
		   int i = Integer.parseInt(t.getText());
		   return true;
		}
		catch (Exception e) {
		   t.setText("数值不正确!");
		   return false;
		}
	}	
}