不使用局部变量变量的值

Question

hi I'm new in this I don't know nothing about this if you can help me please I will apreciate.

Here is my tried of code

package paquete;

class Main {

public static void main(String[] args) {
    // TODO Auto-generated method stub

    int variable;
    variable = 5;

    System.out.println("variable");

}

}

that is the mistake that eclipse give me it says that the mistake is int variable; I don't know why when i created the class main i selected public class main because it doesn't show me class default I think that is the mistake but I can selected. please if someone can help me.

Answer 1

The quotes around the print parameter make it a regular old string. If you want to print the variable value itself, leave out the double quotes. As mentioned before, make it System.out.println(variable); .

Answer 2

The issue is that you have declared a variable, 'variable' on this line

   int variable;

But you never use that variable. However if you change your println statement, you can make this warning disappear

System.out.println("variable: " + variable);

Answer 3

By putting quotes around variable in System.out.println("variable"); you are outputting the string (word) variable. When you want to output the literal value of the variable, you don't put quotes around it. For example System.out.println(variable); would output 5 (as that is what you assigned to variable

Answer 4

Actually you are trying to print variable text

 System.out.println("variable");

so change to

  System.out.println(variable);