publicclassNullPointerExample{publicstaticvoidmain(String[]args){Stringstr=null;try{// null字符串调用repeat方法StringrepeatedStr=str.repeat(3);// 抛出NullPointerExceptionSystem.out.println(repeatedStr);}catch(NullPointerExceptione){System.err.println("Error: Tried to repeat a null string.");// 输...
* A string composed of this string repeated count times or the empty string if this string is empty or count is zero * * Throws: * IllegalArgumentException - if the count is negative. */ public String repeat(int count) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Java程序将字...
*/publicStringrepeat(int count) AI代码助手复制代码 Java程序将字符串" Abc"重复3次。 publicclassMain{publicstaticvoidmain(String[] args) {Stringstr ="Abc";System.out.println( str.repeat(3) ); } } AI代码助手复制代码 程序输出。 AbcAbcAbc AI代码助手复制代码 匹配重复字符串 如果您正在使用JDK <...
repeatedString += "a"; } else { repeatedString += "b"; } } ``` 使用repeat()方法可以更简洁地实现同样的效果: ``` String repeatedString = "ab".repeat(5); System.out.println(repeatedString); ``` 输出结果为: ababababab 总结: Java 8中的String的repeat()方法是一个非常有用的字符串操作...
* A string composed of this string repeated count times or the empty string if this string is empty or count is zero * * Throws: * IllegalArgumentException - if the count is negative. */ publicString repeat(intcount) Java程序将字符串" Abc"重复3次。
* A string composed of this string repeated count times or the empty string if this string is empty or count is zero * * Throws: * IllegalArgumentException - if the count is negative. */ public String repeat(int count) Java程序将字符串" Abc"重复3次。
1. String.repeat() API [Since Java 11] This method returns a string whose value is the concatenation of given string repeatedcounttimes. If the string is empty orcountis zero then the empty string is returned. 1.1. Syntax /** * Parameters: ...
Java.Lang Assembly: Mono.Android.dll Returns a string whose value is the concatenation of this string repeatedcounttimes. C#Copia Parameters count Int32 number of times to repeat Returns String A string composed of this string repeatedcounttimes or the empty string if this string is empty or co...
【题目】JAVA程序编写程序填空,不要改变与输入输出有关的语句.输入一个正整数repeat(04)个评委为歌手打分,评分规则:每个评委依次打分,再去掉2个最高分和2个最低分,计算余下的分数平均值为歌手的得分要求定义并调用方法(函数)sort(a),它的功能是对a数组排序.例:括号内是说明输入2(repeat=2)10 12 12 9 9 ...
Create copies of a text: lettext ="Hello world!"; letresult = text.repeat(2); Try it Yourself » lettext ="Hello world!"; letresult = text.repeat(4); Try it Yourself » Description Therepeat()method returns a string with a number of copies of a string. ...