What are the common syntax errors when using for loops in Java?
The error program is as follows:
public class Forloop { public static void main(String[] args) { for (int i = 1; i <= 4; i++) { for (int j = 1; j <= i; j++) { System.out.print(int j = Math.pow(j,i)); } System.out.println(); } }
Free video tutorial recommendation: java online video
Internal error:
You cannot have a variable declaration in your print statement, write it like this:
public static void main(final String[] args) { for (int i = 1; i <= 4; i++) { for (int j = 1; j <= i; j++) { System.out.print(Math.pow(j, i)); } System.out.println(); } }
Another way is to write the declaration on its own line. You have to name it something other than j, because You have declared this variable:
public static void main(final String[] args) { for (int i = 1; i <= 4; i++) { for (int j = 1; j <= i; j++) { int exp = (int) Math.pow(j, i); System.out.print(exp); } System.out.println(); } }
In addition, you do not need the Math.pow()
method to achieve output:
public static void main(final String[] args) { for (int i = 1; i <= 4; i++) { for (int j = 1; j <= i; j++) { System.out.print(j * j + " "); } System.out.println(); } }
If you want to learn more related knowledge, you can visit :java introductory tutorial
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