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/**
 * Java Help system
 * @author Notus(hehe_xiao@qq.com)
 * @date 2017-11-20
 * @version v0.1
 */

package com.test01;

import java.io.IOException;

public class Help {

    public static void main(String[] args)
            throws IOException{

        System.out.println("Help on:");
        System.out.println(" 1. if");
        System.out.println(" 2. switch");

        char choice = (char)System.in.read();

        switch(choice){
            case '1':
                System.out.println("The if:\n");
                System.out.println("if(condition) statement;");
                System.out.println("else statement;");
                break;
            case '2':
                System.out.println("The switch:\n");
                System.out.println("switch(expression) {");
                System.out.println("  case constant:");
                System.out.println("    statement sequence");
                System.out.println("    break;");
                System.out.println("  // ...");
                System.out.println("}");
                break;
            default:
                System.out.println("Selection not found.");
        }

    }

}