Single Interface in java : Java mein, ek variable ek storage sthal hai jahan aap data ko store kar sakte hain aur baad mein use kar sakte hain. Isse ek naam se pehchana jata hai aur ye ek specific type ke data ko hold kar sakta hai, jaise ki number, string, boolean, aadi.

Variable banane ke liye, aapko use ek naam dena hota hai aur uske baad uska data type tay karna hota hai. Udaharan ke liye:

Iske baad, aap variable ko ek value ke saath initialize kar sakte hain, jaise ki:

Ek hi kadam mein variable banakar initialize bhi kar sakte hain:

Phir, aap is variable ka istemal karke initialize kiye gaye data ko access kar sakte hain:

Isse “Aapki umar hai: 25” console par print hoga.