println Questions
8
Solved
I tried the following code:
fn main() {
let v2 = vec![1; 10];
println!("{}", v2);
}
But the compiler complains:
error[E0277]: `std::vec::Vec<{integer}>` doesn't implement `std::fmt::Di...
11
I am using IntelliJ IDEA, learning Java. All went well until yesterday, when the mentioned error occurred.
I didn't make any changes. I was looking for the solution the following ways:
reboot th...
Beguile asked 28/7, 2016 at 11:15
12
Solved
I have following code :
System.out.println(" | 1 2 3 4 5 6 7 8 9");
System.out.println("----------------------------");
System.out.println("");
I use println to create a new line. Is it possi...
Dhar asked 24/10, 2010 at 12:38
3
Solved
I want to create a function in C++ using cout that has the same as the println function in java. This means that the call should be something like this:
int a=5
println("A string" + a);
the vari...
9
Solved
I've implemented the following method and unit test:
use std::fs::File;
use std::path::Path;
use std::io::prelude::*;
fn read_file(path: &Path) {
let mut file = File::open(path).unwrap();
l...
2
Solved
In this code, there is a ! after the println:
fn main() {
println!("Hello, world!");
}
In most languages I have seen, the print operation is a function. Why is it a macro in Rust?
5
Solved
Using Kotlin 1.0.0 release (compiling in IntelliJ 15).
println(myPojoInstance.foo)
When it tries to compile code (in IntelliJ or Gradle) that references Lombok based POJOs it gives the error "Ca...
6
Solved
I've been told different things over my course on algorithms, and was wondering if I could get a definitive answer as to the time complexity of Java's System.out.println() command.
For example, wh...
Poppycock asked 8/9, 2013 at 5:5
6
I am programming Arduino and I am trying to Serial.print() bytes in hexadecimal format "the my way" (keep reading for more information).
That is, by using the following code
byte byte1 = 0xA2;
by...
Eaglewood asked 1/10, 2013 at 23:59
4
Solved
As illustrated below, both fmt.Println() and println() give same output in Go: Hello world!
But: how do they differ from each other?
Snippet 1, using the fmt package;
package main
import (
"fm...
8
Solved
I am writing some tests for Javascript code and I need to dump some messages during the compile process when errors are encountered.
Is there any equivalent to Java's System.out.println() in Javas...
Voluminous asked 4/1, 2012 at 19:59
4
Solved
In a for-comprehension, I can't just put a print statement:
def prod (m: Int) = {
for (a <- 2 to m/(2*3);
print (a + " ");
b <- (a+1) to m/a;
c = (a*b)
if (c < m)) yield c
...
Yes asked 14/9, 2011 at 8:12
7
What is the difference between System.out.println() and System.err.println() in Java?
Priscian asked 2/7, 2010 at 5:23
2
Solved
use std::collections::HashMap;
fn main() {
let mut hash = HashMap::new();
hash.insert("Daniel", "798-1364");
println!("{}", hash);
}
will fail to compile:
error[E0277]: `std::collections::Ha...
9
Solved
I have a doubt which follows.
public static void main(String[] args) throws IOException{
int number=1;
System.out.println("M"+number+1);
}
Output: M11
But I want to get it printed M2 instead ...
2
I was going through the internal implementation of System.out.println().Though I understood how this is working but couldn't figure out :
Why they decided to use the System class in the fir...
Fumigate asked 29/11, 2018 at 10:40
2
Solved
I have a program that prints out data that should be printed into a format that looks like a table. However, the table breaks when the numbers are longer than 2. I know about the width parameter in...
5
Solved
I'm trying to print the test data used in webdriver test inside a print line in Java
I need to print multiple variables used in a class inside a system.out.print function (printf/println/whatever)...
5
Solved
I've been playing around with Swift, and just came across an issue.
I have the following Dictionary in:
var locations:Dictionary<String,CLLocationCoordinate2D> = ["current":CLLocationCoordi...
3
Solved
I just started a new java project today, and I'm having a problem with println. Here's my main method:
public static void main(String[] args) {
String stringNumGuards = JOptionPane.showInputDial...
Gernhard asked 30/7, 2013 at 22:50
7
Solved
This is a basic question but I can't find an answer. I've looked into floating point arithmetic and a few other topics but nothing has seemed to address this. I'm sure I just have the wrong t...
Bruyn asked 28/8, 2011 at 11:34
5
Solved
The use of println and print in Swift both print to the console. But the only difference between them seems to be that println returns to the next line whereas print will not.
For example:
printl...
2
What's the suffix after '%' I should use in order to format a Long or a Double type variables?
var LONG : Long = 9L;
println("The value of LONG is %?".format(LONG));
var DOUBLE : Double = 9.9;
pr...
4
Solved
the bellow code :
scala> class A {
| def hi = "Hello from A"
| override def toString = getClass.getName
| }
defined class A
scala> val a = new A()
a: A = A
scala> a.toString
res10: S...
2
Solved
I am using the code:
System.out.println(null);
It is showing the error:
The method println(char[]) is ambiguous for the type PrintStream
Why doesn't null represent Object?
Yabber asked 31/3, 2016 at 5:58
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