Java JDK & IDE

Java JDK & IDE:

Before the Java virtual machine (VM) can run a Java program, the program's Java source code must be compiled into byte-code using the javac compiler.
So, you have to install Java development kit (JDK) first.
Here is the Link:

For windows 32 bit version: Click Here

For Windows 64 bit version: Click here

Here is The IDE Link:
You can install either netbeans or Eclipse.......
For Netbeans: click here

For Eclipse: click here