Java基础 println print 实现输出换行-白红宇

Java基础 println print 实现输出换行

阅读量：5375 次

发布时间：2019-06-15

本文共 1717 字，大约阅读时间需要 5 分钟。

JDK ：OpenJDK-11

OS ：CentOS 7.6.1810

IDE ：Eclipse 2019‑03

typesetting ：Markdown

code

package per.jizuiku.base;/** * @author 给最苦 * @date 2019/06/29 * @blog www.cnblogs.com/jizuiku */class Demo {    /**     * @param args     */    public static void main(String[] args) {        // 输出后 换行        System.out.print("hello world");        System.out.println();        System.out.print("hello world" + "\n");        System.out.print("hello world");        System.out.print(" end");    }}

result

hello worldhello worldhello world end

sourceCode

/**    * Terminates the current line by writing the line separator string.  The    * line separator string is defined by the system property    * {@code line.separator}, and is not necessarily a single newline    * character ({@code '\n'}).    */public void println() {    newLine();}

/**    * Prints a string.  If the argument is {@code null} then the string    * {@code "null"} is printed.  Otherwise, the string's characters are    * converted into bytes according to the platform's default character    * encoding, and these bytes are written in exactly the manner of the    * {@link #write(int)} method.    *    * @param      s   The {@code String} to be printed    */public void print(String s) {    write(String.valueOf(s));}