Learn to repeat a given string N times, to produce a new string which contains all the repetitions, though a simple Java program using String.repeat() api.
String repeated = new String(new char[3]).replace("\0", str); System.out.println(repeated); } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 程序输出。 AbcAbcAbc 1. StringUtils类 如果不是正则表达式,则可以使用StringUtils类及其方法repeat(times)。 import org.apache.commons.lang3.StringU...
程序: importjava.util.Collections;publicclassTest {publicstaticvoidmain(String[] args) { System.out.println(createRepeatedStr("***",3)); }//Repeat seed with n timesprivatestaticString createRepeatedStr(String seed,intn) {returnString.join("", Collections.nCopies(n, seed)); } } 效果: **...
如果不是正则表达式,则可以使用StringUtils类及其方法repeat(times)。 importorg.apache.commons.lang3.StringUtils;publicclassMain{publicstaticvoidmain(String[] args) {Stringstr ="Abc";Stringrepeated =StringUtils.repeat(str,3);System.out.println(repeated); } } AI代码助手复制代码 程序输出。 AbcAbcAbc AI...
publicstaticvoidmain(String[] args) { String str ="Abc"; String repeated =newString(newchar[3]).replace("\0", str); System.out.println(repeated); } } 程序输出。 Console 1 AbcAbcAbc StringUtils类 如果不是正则表达式,则可以使用StringUtils类及其方法repeat(times)。
最有意思的是repeat和lines方法了,来看下还能怎么玩! repeat repeat 方法的作用就是重复一个字符串 N 遍,可以用来代替工具类:org.apache.commons.lang3.StringUtils#repeat(java.lang.String, int),来看下repeat的源码。 代码语言:javascript 代码运行次数:0 ...
Java 11中引入了String类的repeat方法,可以使用该方法来重复拷贝字符串n遍。以下是使用重复方法拷贝的示例代码: publicclassCopyString{publicstaticStringcopyMultipleTimes(Stringstr,intn){returnstr.repeat(n);}publicstaticvoidmain(String[]args){Stringstr="Hello, World!";intn=3;Stringresult=copyMultipleTimes...
repeat 方法的作用就是重复一个字符串 N 遍,可以用来代替工具类:org.apache.commons.lang3.StringUtils#repeat(java.lang.String, int),来看下repeat的源码。 public String repeat(int count) { if (count < 0) { throw new IllegalArgumentException("count is negative: " + count); ...
Returns a string whose value is the concatenation of this string repeatedcounttimes. If this string is empty or count is zero then the empty string is returned. Added in 11. Java documentation forjava.lang.String.repeat(int). Portions of this page are modifications based on work created and...
4.repeat() As the name suggests, therepeat()instance method repeats the string content. Itreturns a string whose value is the concatenation of the string repeatedntimes, wherenis passed as a parameter: @TestpublicvoidwhenRepeatStringTwice_thenGetStringTwice(){Stringoutput="La ".repeat(2) +"...