[Solved] Why can I define only default and static methods inside a java interface? [duplicate]

The reason we have default methods in interfaces is to allow the developers to add new methods to the interfaces without affecting the classes that implements these interfaces. Here is link for complete article. 0 solved Why can I define only default and static methods inside a java interface? [duplicate]

[Solved] Set default query by var1 & var2

Your three lines of code will always put $var2 in $var3, as far as your $var1 is just declared as empty before. In your html script, where do you want to show the result ? If its in the input, you have to echo $var3 instead of $var1. solved Set default query by var1 & … Read more