Brainfuck Hello World Transpiled to Java

public static int[] mem = new int[2048];
public static int ptr = 0;

public static void func0() {
    while (mem[ptr] != 0) {
        ptr--;
        mem[ptr] += 9;
        ptr++;
        mem[ptr]--;
    }
}
public static void func1() {
    while (mem[ptr] != 0) {
        ptr--;
        mem[ptr] += 7;
        ptr++;
        mem[ptr]--;
    }
}
public static void func2() {
    while (mem[ptr] != 0) {
        ptr--;
        mem[ptr] += 8;
        ptr++;
        mem[ptr]--;
    }
}
public static void main(String[] args) {
    ptr++;
    mem[ptr] += 8;
    func0();
    ptr--;
    System.out.print((char) mem[ptr]);
    ptr++;
    mem[ptr] += 4;
    func1();
    ptr--;
    mem[ptr]++;
    System.out.print((char) mem[ptr]);
    mem[ptr] += 7;
    System.out.print((char) mem[ptr]);
    System.out.print((char) mem[ptr]);
    mem[ptr] += 3;
    System.out.print((char) mem[ptr]);
    ptr += 2;
    mem[ptr] += 6;
    func1();
    ptr--;
    mem[ptr] += 2;
    System.out.print((char) mem[ptr]);
    mem[ptr] += -12;
    System.out.print((char) mem[ptr]);
    ptr++;
    mem[ptr] += 6;
    func0();
    ptr--;
    mem[ptr]++;
    System.out.print((char) mem[ptr]);
    ptr--;
    System.out.print((char) mem[ptr]);
    mem[ptr] += 3;
    System.out.print((char) mem[ptr]);
    mem[ptr] += -6;
    System.out.print((char) mem[ptr]);
    mem[ptr] += -8;
    System.out.print((char) mem[ptr]);
    ptr += 3;
    mem[ptr] += 4;
    func2();
    ptr--;
    mem[ptr]++;
    System.out.print((char) mem[ptr]);
}