[Java] Killstreak Class1 for example.

package de.keving;

import com.sun.jna.*;
import com.sun.jna.ptr.*;

public class W32Api {
    public static final int PROCESS_QUERY_INFORMATION = 0x0400;
    public static final int PROCESS_VM_READ = 0x0010;
    public static final int PROCESS_VM_WRITE = 0x0020;
    public static final int PROCESS_VM_OPERATION = 0x0008;
    public static final int PROCESS_ACCESS_FLAG = 0x0439;
	
    private interface User32 extends Library {
    	
		User32 INSTANCE = (User32) Native.loadLibrary("user32", User32.class);
		
		Pointer FindWindowA(String winClass, String title);
		Pointer FindWindowByCaptionA(Pointer ZeroOnly, String lpWindowName);
		String GetWindowTextA(Pointer hwnd);
	
	}
    
    private interface Psapi extends Library
    {
	    Psapi INSTANCE = (Psapi) Native.loadLibrary("Psapi", Psapi.class);
	    boolean EnumProcesses(int []ProcessIDsOut,int size , int[] BytesReturned);
	    int GetProcessImageFileNameW(Pointer Process, char[] outputname, int lenght);
	    int GetModuleFileNameExA (Pointer process, Pointer hModule, byte[] lpString, int nMaxCount);
    }
	
    private interface Kernel32 extends Library {
    	
        Kernel32 INSTANCE = (Kernel32) Native.loadLibrary("kernel32", Kernel32.class);

        Pointer OpenProcess(int dwDesiredAccess, boolean bInheritHandle, int dwProcessId);
        boolean ReadProcessMemory(Pointer hProcess, int inBaseAddress, Pointer outputBuffer, int nSize, IntByReference outNumberOfBytesRead);
        boolean WriteProcessMemory(Pointer hProcess, Pointer pAddress, Pointer inputBuffer, int nSize, IntByReference outNumberOfBytesWritten);
        int WriteProcessMemory(Pointer hProcess, int lpBaseAddress, int[] lpBuffer, int nSize, int[] lpNumberOfBytesWritten);
        int GetLastError();
        boolean EnumProcesses(int []ProcessIDsOut,int size , int[] BytesReturned);
        int GetProcessImageFileNameW(Pointer Process, char[] outputname, int lenght);
    }
    
    public static boolean EnumProcesses(int []ProcessIDsOut,int size , int[] BytesReturned)
    {
    	return Psapi.INSTANCE.EnumProcesses(ProcessIDsOut, size, BytesReturned);
    }
    
    public static int GetProcessImageFileNameW(Pointer Process, char[] outputname, int lenght)
    {
    	return Psapi.INSTANCE.GetProcessImageFileNameW(Process, outputname, lenght);
    }
    
    public static Pointer OpenProcess(int dwDesiredAccess, boolean bInheritHandle, int dwProcessId)
    {
    	return Kernel32.INSTANCE.OpenProcess(dwDesiredAccess, bInheritHandle, dwProcessId);
    }

	public static boolean ReadProcessMemory(Pointer process, int offset, Pointer outputBuffer, int size, IntByReference BytesRead)
	{
		return Kernel32.INSTANCE.ReadProcessMemory(process, offset, outputBuffer, size, BytesRead);
	}
	
	public static int WriteProcessMemory(Pointer hProcess, int lpBaseAddress, int[] lpBuffer, int nSize, int[] lpNumberOfBytesWritten)
	{
		return Kernel32.INSTANCE.WriteProcessMemory(hProcess, lpBaseAddress, lpBuffer, nSize, lpNumberOfBytesWritten);
	}
	
	public static boolean WriteProcessMemory(Pointer hProcess, Pointer pAddress, Pointer inputBuffer, int nSize, IntByReference outNumberOfBytesWritten)
	{
		return Kernel32.INSTANCE.WriteProcessMemory(hProcess, pAddress, inputBuffer, nSize, outNumberOfBytesWritten);
	}
	
	public static int GetModuleFileNameEx (Pointer process, Pointer hModule, byte[] lpString, int nMaxCount)
	{
		return Psapi.INSTANCE.GetModuleFileNameExA(process, hModule, lpString, nMaxCount);
	}
}

int offset = 30209969; // 01CCF7B3
int[] killstreak = { 1 }; // UAV
W32Api.WriteProcessMemory(process, offset, killstreak, 1, null);