Java Scanner Usage getInput(Scanner in, String message, boolean allowNull)

Here you can find the source of getInput(Scanner in, String message, boolean allowNull)

Description

get Input

License

Apache License

Declaration

public static String getInput(Scanner in, String message, boolean allowNull) throws Exception 

Method Source Code

//package com.java2s;
/*/*from   w w w.  ja v  a2  s. c  o m*/
 * Copyright Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags and
 * the COPYRIGHT.txt file distributed with this work.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.Scanner;

public class Main {
    public static String getInput(Scanner in, String message) throws Exception {
        return getInput(in, message, false);
    }

    public static String getInput(Scanner in, String message, boolean allowNull) throws Exception {
        while (true) {
            System.out.print(message);
            String input = in.nextLine();
            input = input.trim();
            if (input.length() > 1) {
                System.out.println("");
                return input;
            }

            if (allowNull) {
                System.out.println("");
                return null;
            }
        }
    }
}

Related

  1. getConstantPoolsFromText(String text)
  2. getDirectoryString()
  3. getEndLine(String cqlString)
  4. getExtensions(Scanner scanner)
  5. getFirstInt(String s)
  6. getInt()
  7. getInt(Scanner sc)
  8. getInteger(String parameter)
  9. getLines(String str)