simpleinput.java

来自「Java code Bankline to allocated the sour」· Java 代码 · 共 48 行

package miscLib;

import javax.swing.JOptionPane;

/**
 * Title:       SimpleInput.java
 * Description: Provides class methods for input data using JOptionPane.showInputDialog
 */

public abstract class SimpleInput {

	public static int getInteger(String prompt) {
		do {
			try {
				return Integer.parseInt(JOptionPane.showInputDialog(null, prompt));
			}
			catch (NumberFormatException nfe) {
				JOptionPane.showMessageDialog(null, "Invalid integer!");
			}
		} while (true);
	}

	public static float getFloat(String prompt) {
		do {
			try {
				return Float.parseFloat(JOptionPane.showInputDialog(null, prompt));
			}
			catch (NumberFormatException nfe) {
				JOptionPane.showMessageDialog(null, "Invalid number!");
			}
		} while (true);
	}

	public static String getString(String prompt) {
		return JOptionPane.showInputDialog(null, prompt);
	}

	public static char getChar(String prompt) {
		String s;
		do {
				s = JOptionPane.showInputDialog(null, prompt);
				if (s.length() == 1)
					return s.charAt(0);
			} while (true);
	}


} // class SimpleInput