Task: Write language name in 3D ASCII
Go: package main

import (
    "fmt"
    "strings"
)

var lean = font{
    height:  5,
    slant:   1,
    spacing: 2,
    m: map[rune][]string{
        'G': []string{
            `  _/_/_/`,
            `_/      `,
            `_/  _/_/`,
            `_/    _/`,
            `  _/_/_/`,
        },
        'o': []string{
            `        `,
            `  _/_/  `,
            `_/    _/`,
            `_/    _/`,
            `  _/_/  `,
        },
    }}

var smallKeyboard = font{
    height:  4,
    slant:   0,
    spacing: -1,
    m: map[rune][]string{
        'G': []string{
            ` ____ `,
            `||G ||`,
            `||__||`,
            `|/__\|`,
        },
        'o': []string{
            ` ____ `,
            `||o ||`,
            `||__||`,
            `|/__\|`,
        },
    }}

type font struct {
    height  int
    slant   int
    spacing int
    m       map[rune][]string
}

func render(s string, f font) string {
    rows := make([]string, f.height)
    if f.slant != 0 {
        start := 0
        if f.slant > 0 {
            start = f.height
        }
        for i := range rows {
            rows[i] = strings.Repeat(" ", (start-i)*f.slant)
        }
    }
    if f.spacing >= 0 {
        spacing := strings.Repeat(" ", f.spacing)
        for j, c := range s {
            for i, r := range f.m[c] {
                if j > 0 {
                    r = spacing + r
                }
                rows[i] += r
            }
        }
    } else {
        overlap := -f.spacing
        for j, c := range s {
            for i, r := range f.m[c] {
                if j > 0 {
                    r = r[overlap:]
                }
                rows[i] += r
            }
        }
    }
    return strings.Join(rows, "\n")
}

func main() {
    fmt.Println(render("Go", lean))
    fmt.Println(render("Go", smallKeyboard))
}

Java: public class F5{
    char[]z={' ',' ','_','/',};
    long[][]f={
        {87381,87381,87381,87381,87381,87381,87381,},
        {349525,375733,742837,742837,375733,349525,349525,},
        {742741,768853,742837,742837,768853,349525,349525,},
        {349525,375733,742741,742741,375733,349525,349525,},
        {349621,375733,742837,742837,375733,349525,349525,},
        {349525,375637,768949,742741,375733,349525,349525,},
        {351157,374101,768949,374101,374101,349525,349525,},
        {349525,375733,742837,742837,375733,349621,351157,},
        {742741,768853,742837,742837,742837,349525,349525,},
        {181,85,181,181,181,85,85,},
        {1461,1365,1461,1461,1461,1461,2901,},
        {742741,744277,767317,744277,742837,349525,349525,},
        {181,181,181,181,181,85,85,},
        {1431655765,3149249365L,3042661813L,3042661813L,3042661813L,1431655765,1431655765,},
        {349525,768853,742837,742837,742837,349525,349525,},
        {349525,375637,742837,742837,375637,349525,349525,},
        {349525,768853,742837,742837,768853,742741,742741,},
        {349525,375733,742837,742837,375733,349621,349621,},
        {349525,744373,767317,742741,742741,349525,349525,},
        {349525,375733,767317,351157,768853,349525,349525,},
        {374101,768949,374101,374101,351157,349525,349525,},
        {349525,742837,742837,742837,375733,349525,349525,},
        {5592405,11883957,11883957,5987157,5616981,5592405,5592405,},
        {366503875925L,778827027893L,778827027893L,392374737749L,368114513237L,366503875925L,366503875925L,},
        {349525,742837,375637,742837,742837,349525,349525,},
        {349525,742837,742837,742837,375733,349621,375637,},
        {349525,768949,351061,374101,768949,349525,349525,},
        {375637,742837,768949,742837,742837,349525,349525,},
        {768853,742837,768853,742837,768853,349525,349525,},
        {375733,742741,742741,742741,375733,349525,349525,},
        {192213,185709,185709,185709,192213,87381,87381,},
        {1817525,1791317,1817429,1791317,1817525,1398101,1398101,},
        {768949,742741,768853,742741,742741,349525,349525,},
        {375733,742741,744373,742837,375733,349525,349525,},
        {742837,742837,768949,742837,742837,349525,349525,},
        {48053,23381,23381,23381,48053,21845,21845,},
        {349621,349621,349621,742837,375637,349525,349525,},
        {742837,744277,767317,744277,742837,349525,349525,},
        {742741,742741,742741,742741,768949,349525,349525,},
        {11883957,12278709,11908533,11883957,11883957,5592405,5592405,},
        {11883957,12277173,11908533,11885493,11883957,5592405,5592405,},
        {375637,742837,742837,742837,375637,349525,349525,},
        {768853,742837,768853,742741,742741,349525,349525,},
        {6010197,11885397,11909973,11885397,6010293,5592405,5592405,},
        {768853,742837,768853,742837,742837,349525,349525,},
        {375733,742741,375637,349621,768853,349525,349525,},
        {12303285,5616981,5616981,5616981,5616981,5592405,5592405,},
        {742837,742837,742837,742837,375637,349525,349525,},
        {11883957,11883957,11883957,5987157,5616981,5592405,5592405,},
        {3042268597L,3042268597L,3042661813L,1532713813,1437971797,1431655765,1431655765,},
        {11883957,5987157,5616981,5987157,11883957,5592405,5592405,},
        {11883957,5987157,5616981,5616981,5616981,5592405,5592405,},
        {12303285,5593941,5616981,5985621,12303285,5592405,5592405,},};
    public static void main(String[]a){
        new F5(a.length>0?a[0]:"Java");}
    private F5(String s){
        StringBuilder[]o=new StringBuilder[7];
        for(int i=0;i<7;i++)o[i]=new StringBuilder();
        for(int i=0,l=s.length();i<l;i++){
            int c=s.charAt(i);
            if(65<=c&&c<=90)c-=39;
            else if(97<=c&&c<=122)c-=97;
            else c=-1;
            long[]d=f[++c];
            for(int j=0;j<7;j++){
                StringBuilder b=new StringBuilder();
                long v=d[j];
                while(v>0){
                    b.append(z[(int)(v&3)]);
                    v>>=2;}
                o[j].append(b.reverse().toString());}}
        for(int i=0;i<7;i++){
            for(int j=0;j<7-i;j++)
                System.out.print(' ');
            System.out.println(o[i]);}}}