Question

Something is wrong with each of the following pieces of code. Use A or B to label whether the error is from: A. Compiler ErrorB. Logical or Runtime Error Use minor edits to correct the code. int x System.out.println("value of x is:x) if (x820) System.out.println("Your number was even!") System.out.println("Your number is odd!") else double avg numl+num2+num3/3.0 if (x > y) f double max-x; else max-y: 5. double answer Math.sqrt (/25;

Answer 1

A. Compiler Error B. Logical or Runtime Error Use minor edits to correct the code.
1. int x;
System.out.println("vellue of x is: " +x); //Compiler Error
Explanation:
public class MyClass {
  
public static void main(String args[]) {

int x;

System.out.println("vellue of x is: " +x);
  
}

}
Output:
Error variable x might not have been initialized

2.
if (x%2==0)
x--;
System.out.println("Your number was even!");
else // Logical or Runtime Error Use minor edits to correct the code.
System.out.println("Your number is odd!"); Explanation:
Explanation:
Program:
public class MyClass {
public static void main(String args[]) {
int x;
if(x%2==0)
x--;
System.out.println("Your number was even!");
else
System.out.println("Your number is odd!");
}
}
Output:Error 'else' without 'if'

3.
double avg = numl+num2+num3/3.0; //Compiler Error
Explanation:
Program:
public class MyClass {
public static void main(String args[]) {
double avg = numl+num2+num3/3.0;
}
}
Output error: cannot find symbol
double avg = num1+num2+num3/3.0;
^
symbol: variable num1
location: class MyClass
/MyClass.java:3: error: cannot find symbol
double avg = num1+num2+num3/3.0;
^
symbol: variable num2
location: class MyClass
/MyClass.java:3: error: cannot find symbol
double avg = num1+num2+num3/3.0;
^
symbol: variable num3
location: class MyClass
3 errors

4.
if (x > y) { //Compiler Error
double max=x;
}
else {
max =y;
}
Explanation:
Program:
public class MyClass {
public static void main(String args[]) {
if (x > y) {
double max=x;
}
else {
max =y;
}
}
}
Output: Error
/MyClass.java:3: error: cannot find symbol
if (x > y) {
^
symbol: variable x
location: class MyClass
/MyClass.java:3: error: cannot find symbol
if (x > y) {
^
symbol: variable y
location: class MyClass
/MyClass.java:4: error: cannot find symbol
double max=x;
^
symbol: variable x
location: class MyClass
/MyClass.java:7: error: cannot find symbol
max =y;
^
symbol: variable max
location: class MyClass
/MyClass.java:7: error: cannot find symbol
max =y;
^
symbol: variable y
location: class MyClass
5 errors

5. double answer = Math.sqrt()/25; //Logical or Runtime Error Use minor edits to correct the code.

Explanation:
Program:
public class MyClass {
public static void main(String args[]) {
double answer = Math.sqrt()/25;
}
}
Output: Error
/MyClass.java:3: error: method sqrt in class Math cannot be applied to given types;
double answer = Math.sqrt()/25;
^
required: double
found: no arguments
reason: actual and formal argument lists differ in length
1 error