java 使用for循环打印数组元素这是回答zyBooks 6.2.3中问题的代码：使用for循环打印数组元素。您的两个循环几乎都是正确的。请尝试使用以下代码：要向后打印，请执行以下操作：我也一直在做这个教科书问题。上面代码的问题是i已经被赋值了，所以在for循环中尝试使用int会导致错误。下面是我用来成功实现预期结果的代码。
import java.util.Arrays; public class ArrayPrintingExample { public static void main(String[] args) { int[] numbers = {101, 202, 303, 404, 505}; // Print a message to indicate that we are printing the array using a for loop System.out.println("Printing the array while utilising the...
Test.java 文件代码: publicclassTest{publicstaticvoidmain(String[]args){int[]numbers={10,20,30,40,50};for(intx:numbers){System.out.print(x);System.out.print(",");}System.out.print("\n");String[]names={"James","Larry","Tom","Lacy"};for(Stringname:names){System.out.print(name);...
for (String name : names) { System.out.println(name); if ("Hello".equals(name)) { names.remove(name); } } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 增强for循环 Hello Exception in thread "main" java.util.ConcurrentModificationException at java.util.ArrayList$Itr...
问初学者，Java for-loop在接受字符串输入之前输出语句两次EN版权声明：本文内容由互联网用户自发贡献，该...
hello java hello java hello java hello java 1. 2. 3. 4. 5. for循环执行过程 class myfor1{ public static void main(String[] args){ int j = 1; for(System.out.print('a');j<4;System.out.print('b'),j++){ System.out.println('c'); ...
When you know exactly how many times you want to loop through a block of code, use the for loop instead of a while loop:SyntaxGet your own Java Server for (statement 1; statement 2; statement 3) { // code block to be executed }...
This example demonstrates iterating over an array. The loop iterates through thenumbersarray, using the indexito access each element and print its value. Example 3: NestedforLoop publicclassNestedForLoopExample{publicstaticvoidmain(String[]args){for(int i=1;i<=3;i++){for(int j=1;j<=3;...
我们可以看到,反编译后的代码,在for循环中,每次都是new了一个StringBuilder,然后再把String转成StringBuilder,再进行append。 而频繁的新建对象当然要耗费很多时间了,不仅仅会耗费时间,频繁的创建对象,还会造成内存资源的浪费。 我为什么在for循环外写str=str+"a"+"b";,是为了告诉大家,不是一个”+“就创建一个Str...
publicclassJavaExample{publicstaticvoidmain(String[]args){//outer loopfor(inti=1;i<=6;i++){//inner loopfor(intj=1;j<=i;j++){System.out.print("* ");}// this is to move the cursor to new line// to print the next row of the patternSystem.out.println();}}} ...