blocks|key|2404237|text|打印前25项要素：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2404238|for+(int+i=0;+i<25;+i%2B%2B)+{
++++System.out.println(strArray[i]);
}|code-block|syntax|javascript|2404239|打印元素10至50：|2404240|for+(int+j=9;+j<50;+j%2B%2B)+{
++++System.out.println(strArray[j]);
}|2404241|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Print first 25 elements:

<pre><code>for (int i=0; i&lt;25; i++) {
 System.out.println(strArray[i]);
}
</code></pre>

Print element number 10 to 50:

<pre><code>for (int j=9; j&lt;50; j++) {
 System.out.println(strArray[j]);
}
</code></pre>

blocks|key|2456635|text|您可以很容易地使用for循环来完成这一任务。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2456636|String[]+strArray+=+{"bacon",+"chicken",+"ham",+"egg",+"poop"};
for+(i+=+0;+i+<+3;+i+%2B%2B){
++++Ssytem.out.println(strArray[i]);
};|code-block|syntax|javascript|2456637|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can do this very easily using a for loop

<pre><code>String[] strArray = {"bacon", "chicken", "ham", "egg", "poop"};
for (i = 0; i &lt; 3; i ++){
 Ssytem.out.println(strArray[i]);
};
</code></pre>

blocks|key|2739128|text|自Java+8以来|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2739129|您可以从limit类中使用Stream：|CODE|2739130|Stream.of(strArray).limit(3).forEach(System.out::println);|code-block|syntax|javascript|2739131|或|2739132|Arrays.stream(strArray).limit(3).forEach(System.out::println);+|2739133|entityMap^0|0|7|0|4|5|D|6|0|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@$9|X|A|Y|B|H]|$9|Z|A|10|B|H]]|D|@]|E|$]]|$1|I|3|J|5|K|7|11|8|@]|D|@]|E|$L|M]]|$1|N|3|O|5|6|7|12|8|@]|D|@]|E|$]]|$1|P|3|Q|5|K|7|13|8|@]|D|@]|E|$L|M]]|$1|R|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|S|$]]

Since Java 8 

You can use <code>limit</code> from the <code>Stream</code> class:

<pre><code>Stream.of(strArray).limit(3).forEach(System.out::println);
</code></pre>

or

<pre><code>Arrays.stream(strArray).limit(3).forEach(System.out::println); 
</code></pre>

blocks|key|2739063|text|虽然这是非常基本的，但只是提供了一个引用代码，这样您就可以编写一个类似于此的泛型方法，该方法从需要打印的位置获取字符串数组以及开始和结束索引，并检查起始值是否小于0或结束值是否大于数组本身的大小。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2739064|++++public+void+printElements(String[]+strArray,int+start+,+int+end)
++++++++{
++++++++if(start+>+0+&&+end+<strArray.length)
+++++++++++for+(int+i=start;+i<end;+i%2B%2B)+
++++++++++++{
++++++++++++System.out.println(strArray[i]);
++++++++++++}
++++++++}|code-block|syntax|javascript|2739065|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Although this is very basics, but just giving a reference code so that you can write a generic method like this one, which takes string array and start and end index from where you need to print , and checking if your starting is not less than 0 or ending greater than size of the array itself..

<pre><code> public void printElements(String[] strArray,int start , int end)
 {
 if(start &gt; 0 &amp;&amp; end &lt;strArray.length)
 for (int i=start; i&lt;end; i++) 
 {
 System.out.println(strArray[i]);
 }
 }
</code></pre>

blocks|key|2739072|text|你可以用这样的函数来做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2739073|public+void+print(String+[]+array,+int+range1,+int+range2){
+++++for(int+i+=+range1,+i+<+range2,+i%2B%2B)
++++++++++System.out.println(array[i]);
}|code-block|syntax|javascript|2739074|您可以为range1和range2值添加一些if控件。例如，这些值不能低于零或高于array.length|2739075|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can do that with a function like that:

<pre><code>public void print(String [] array, int range1, int range2){
 for(int i = range1, i &lt; range2, i++)
 System.out.println(array[i]);
}
</code></pre>

You can add some if controls for range1 and range2 values. For example these values can't be lower than zero or higher than array.length

blocks|key|2404388|text|打印数组元素非常简单。让我们使用一个函数printElemnts()来演示如何打印数组的元素。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2404389|public+void+printElements(String+[]+array,+int+startingIndex,+int+lastIndex)+{
++++for+(int+i+=+startingIndex;+i+<+lastIndex;+i%2B%2B)
++++++++System.out.println(array[i]);
}|code-block|syntax|javascript|2404390|在您的情况下，您可以将startingIndex设置为零，lastIndex设置为某些值。|2404391|entityMap^0|K|E|0|0|B|D|T|9|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|N|$]]

It's very simple to print elements of array. Let's take a function <code>printElemnts()</code> to demonstrate how to print elements of array.

<pre><code>public void printElements(String [] array, int startingIndex, int lastIndex) {
 for (int i = startingIndex; i &lt; lastIndex; i++)
 System.out.println(array[i]);
}
</code></pre>

In your case you can set the <code>startingIndex</code> as zero and <code>lastIndex</code> as some value.

How do I only print out the first 5 elements of an array that has 10 elements?

I know I can just do:

<pre><code>String[] strArray = {"bacon", "chicken", "ham", "egg", "poop"};
System.out.println(strArray[0]);
System.out.println(strArray[1]);
System.out.println(strArray[2]);
</code></pre>

But assuming I had 100 elements and wanted to print out the first 25 elements. Or wanted to print out all elements from the 10th to the 50th. Writing all the lines of code would take up time.

Is there like a way to tell the console to print "from" one element to another? Sort of like from 10-50? So like a short-cut.

How do I print out only the first 3 elements of an array that has 5 elements in java?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

如何只打印出包含10个元素的数组的前5个元素？我知道我可以这么做：String[] strArray = {"bacon", "chicken", "ham", "egg", "poop"};System.out.println(strArray[0]);System.out.println(strArray[1]);System.out.println(strArray[2]);但假设我有100

问如何只打印出在java中包含5个元素的数组的前3个元素？
EN

回答 6

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何只打印出在java中包含5个元素的数组的前3个元素？EN

回答 6

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何只打印出在java中包含5个元素的数组的前3个元素？
EN