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Copy pathInstance into static.java
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59 lines (52 loc) · 1.72 KB
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Instance into static.java
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59 lines (52 loc) · 1.72 KB
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//Cannot access instance variables and methods directly into static methods
public class Main
{
int Var=50;
public void instanceMethod(){
System.out.println("Inside instanceMethod: Instance Variable="+instanceVar);
}
public static void staticMethod(){
System.out.println("Inside staticMethod");
System.out.println(instanceVar);
instanceMethod();
}
public static void main(String[] args) {
staticMethod();
}
}
output:
Main.java:6: error: cannot find symbol
System.out.println("Inside instanceMethod: Instance Variable="+instanceVar);
^
symbol: variable instanceVar
location: class Main
Main.java:12: error: cannot find symbol
System.out.println(instanceVar);
^
symbol: variable instanceVar
location: class Main
Main.java:13: error: non-static method instanceMethod() cannot be referenced from a static context
instanceMethod();
^
3 errors
// accessing using object instance variables and methods directly into static methods
public class Main
{
int instanceVar=50;
public void instanceMethod(){
System.out.println("Inside instanceMethod: Instance Variable="+instanceVar);
}
public static void staticMethod(){
System.out.println("Inside staticMethod");
Main obj=new Main();
System.out.println("Accessing instanceVar via object: "+obj.instanceVar);
obj.instanceMethod();
}
public static void main(String[] args) {
staticMethod();
}
}
output:
Inside staticMethod
Accessing instanceVar via object: 50
Inside instanceMethod: Instance Variable=50