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Closed 7 years ago.
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import static java.lang.Math.pow;
public class Power2
{
public static void sampleMethod(int y)
{
long r=0;
for(int i=0;i<=y;i++)
{
r =long(Math.pow(2,i));
System.out.println("2*"+i+"="+r);
}
}
}
Casts require parenthesis
r = (long) Math.pow(2,i);
^ ^
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I have the below code and am trying to figure out why it is throwing an error. I am getting Exception in thread "main" java.lang.Error: Unresolved compilation problem:
Syntax error on token ";", delete this token
at LearnJava.main(LearnJava.java:7)
public class LearnJava {
public static void main(String[] args) {
for (int i = 10; i >= 0; i++;){
System.out.println(i);
}
}
}
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Closed 9 days ago.
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public class Object03 {
public static void main(String[] args) {
Person p2 = new Person();
p2.speak();
}
}
class Person{
String name;
int age;
public void speak() {
System.out.println("I am a good person");
}
}
It says "The type person is defined" in row 13 in eclipse.But it works fine if i write it in sublime and use cmd to compile and run it.enter image description here
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Closed 4 years ago.
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recently my teacher showed us how to make a summ methode but i cant remember it.I think i got it a bit ritght.But it tells me error unexpected token a
void main(){
summ(6, 7);
}
int summ(a, b){
a = int
b = int
return a+b }
It should be like this
static int summ(int a, int b)
{
return a+b;
}
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I started learning core java from youtube but while writing same code in eclipse i am getting syntax error .
package Javatut;
public class ifelse {
public static void main(String[] args) {
int test = 10;
if (test == 10);{
System.out.println("yes");
}
else{
System.out.println("No");
}
}
}
I suggest you use an IDE as this will help you find such issues. After using the auto-formatter, I can see this warning in IntelliJ
You can see that the formatting is not what you think it should be as you have an extra ; in your code.
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Closed 8 years ago.
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am writing a java program as below.
Void fun(int n){
for(int i=0;i<=n;i++){
fun(n-i);
}
System.out.println(“well done”);
}
I am getting error, missing return statement. I not used int or string method. It is void method na. why it asking return type, please help for this problem.
Void is a reference type.
void is a language primitive.
You don't need a return statement when your return type is void.