class level error : expected in java

Question

when I am coding this at class level

int a;
a=5;

it throws error : \"identifier expected\"

But when I declare it as a local variable li

Answer 1

When you're doing this at class level, you're allowed to combine declaration and assignment in just one statement, like:

class A {
    int a = 5;
}

Otherwise, you have to wrap the assignment withing a block (constructor, method, initializer block). For example:

class A {
    int a;

    public A() { a = 5; } //via constructor

    void setA() { a = 5; } //via method

    { a = 5; } //via initializer block
}