Java基础 Scanner 使用nextLine接收字符串

JDK ：OpenJDK-11

OS ：CentOS 7.6.1810

IDE ：Eclipse 2019‑03

typesetting ：Markdown

code

package per.jizuiku.base;

import java.util.Scanner;

/**

 * @author 给最苦

 * @date 2019/06/29

 * @blog www.cnblogs.com/jizuiku

 */

class Demo {

    /**

     * @param args

     */

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        String myStr = sc.nextLine();

        System.out.println("resut:" + myStr);

        sc.close();

    }

}

result

hello world

resut:hello world

sourceCode

/**

    * Advances this scanner past the current line and returns the input

    * that was skipped.

    *

    * This method returns the rest of the current line, excluding any line

    * separator at the end. The position is set to the beginning of the next

    * line.

    *

    * <p>Since this method continues to search through the input looking

    * for a line separator, it may buffer all of the input searching for

    * the line to skip if no line separators are present.

    *

    * @return the line that was skipped

    * @throws NoSuchElementException if no line was found

    * @throws IllegalStateException if this scanner is closed

    */

public String nextLine() {

    modCount++;

    if (hasNextPattern == linePattern())

        return getCachedResult();

    clearCaches();

    String result = findWithinHorizon(linePattern, 0);

    if (result == null)

        throw new NoSuchElementException("No line found");

    MatchResult mr = this.match();

    String lineSep = mr.group(1);

    if (lineSep != null)

        result = result.substring(0, result.length() - lineSep.length());

    if (result == null)

        throw new NoSuchElementException();

    else

        return result;

}

resource

[ JDK ] openjdk.java.net
[ doc - 参考 ] docs.oracle.com/en/java/javase/11
[ 规范 - 推荐 ] yq.aliyun.com/articles/69327
[ 规范 - 推荐 ] google.github.io/styleguide
[ 源码 ] hg.openjdk.java.net
[ OS ] www.centos.org
[ IDE ] www.eclipse.org/downloads/packages
[ 平台 ] www.cnblogs.com

感谢帮助过给最苦的人们。

Java、Groovy和Scala等基于JVM的语言，优秀，值得学习。

规范的命名和代码格式等，有助于沟通和理解。

JVM的配置、监控与优化，比较实用，值得学习。

巴特西

Java基础 Scanner 使用nextLine接收字符串

code

result

sourceCode

resource

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