Task: Sort three variables
Go: package main

import (
    "fmt"
    "log"
    "sort"
)

var (
    stringsIn = []string{
        `lions, tigers, and`,
        `bears, oh my!`,
        `(from the "Wizard of OZ")`}
    intsIn = []int{77444, -12, 0}
)

func main() {
    {
        
        x, y, z := stringsIn[0], stringsIn[1], stringsIn[2]

        
        
        s := []string{x, y, z}
        sort.Strings(s)
        x, y, z = s[0], s[1], s[2]

        
        if x > y || y > z {
            log.Fatal()
        }

        
        
        
        x, y, z = stringsIn[0], stringsIn[1], stringsIn[2] 
        if x < y {
            switch {
            case y < z:
            case x < z:
                y, z = z, y
            default:
                x, y, z = z, x, y
            }
        } else {
            switch {
            case x < z:
                x, y = y, x
            case z < y:
                x, z = z, x
            default:
                x, y, z = y, z, x
            }
        }
        if x > y || y > z { 
            log.Fatal()
        }

        
        
        x, y, z = stringsIn[0], stringsIn[1], stringsIn[2] 
        if x > y {
            x, y = y, x
        }
        if y > z {
            y, z = z, y
        }
        if x > y {
            x, y = y, x
        }
        if x > y || y > z { 
            log.Fatal()
        }
        fmt.Println("sorted strings:")
        fmt.Println(" ", x)
        fmt.Println(" ", y)
        fmt.Println(" ", z)
        fmt.Println("original data:")
        fmt.Println(" ", stringsIn[0])
        fmt.Println(" ", stringsIn[1])
        fmt.Println(" ", stringsIn[2])
    }
    
    {
        
        x, y, z := intsIn[0], intsIn[1], intsIn[2] 
        s := []int{x, y, z}
        sort.Ints(s)
        x, y, z = s[0], s[1], s[2]
        if x > y || y > z { 
            log.Fatal()
        }

        
        x, y, z = intsIn[0], intsIn[1], intsIn[2] 
        if x < y {
            switch {
            case y < z:
            case x < z:
                y, z = z, y
            default:
                x, y, z = z, x, y
            }
        } else {
            switch {
            case x < z:
                x, y = y, x
            case z < y:
                x, z = z, x
            default:
                x, y, z = y, z, x
            }
        }
        if x > y || y > z { 
            log.Fatal()
        }

        
        x, y, z = intsIn[0], intsIn[1], intsIn[2] 
        if x > y {
            x, y = y, x
        }
        if y > z {
            y, z = z, y
        }
        if x > y {
            x, y = y, x
        }
        if x > y || y > z { 
            log.Fatal()
        }
        fmt.Println("sorted ints:", x, y, z)
        fmt.Println("original data:", intsIn)
    }
    
    
    {
        sort3 := func(x, y, z int) (int, int, int) {
            if x > y {
                x, y = y, x
            }
            if y > z {
                y, z = z, y
            }
            if x > y {
                x, y = y, x
            }
            return x, y, z
        }
        x, y, z := intsIn[0], intsIn[1], intsIn[2] 
        x, y, z = sort3(x, y, z)
        if x > y || y > z { 
            log.Fatal()
        }
    }
    
    {
        sort3 := func(x, y, z *int) {
            if *x > *y {
                *x, *y = *y, *x
            }
            if *y > *z {
                *y, *z = *z, *y
            }
            if *x > *y {
                *x, *y = *y, *x
            }
        }
        x, y, z := intsIn[0], intsIn[1], intsIn[2] 
        sort3(&x, &y, &z)
        if x > y || y > z { 
            log.Fatal()
        }
    }
}

Java: import java.util.Comparator;
import java.util.stream.Stream;

class Box {
    public int weightKg;

    Box(final int weightKg) {
        this.weightKg = weightKg;
    }
}

public class Sort3Vars {
    public static void main(String... args) {
        int iA = 21;
        int iB = 11;
        int iC = 82;
        int[] sortedInt = Stream.of(iA, iB, iC).sorted().mapToInt(Integer::intValue).toArray();
        iA = sortedInt[0];
        iB = sortedInt[1];
        iC = sortedInt[2];
        System.out.printf("Sorted values: %d %d %d%n", iA, iB, iC);

        String sA = "s21";
        String sB = "s11";
        String sC = "s82";
        Object[] sortedStr = Stream.of(sA, sB, sC).sorted().toArray();
        sA = (String) sortedStr[0];
        sB = (String) sortedStr[1];
        sC = (String) sortedStr[2];
        System.out.printf("Sorted values: %s %s %s%n", sA, sB, sC);

        Box bA = new Box(200);
        Box bB = new Box(12);
        Box bC = new Box(143);
        
        Object[] sortedBox = Stream.of(bA, bB, bC).sorted(Comparator.comparingInt(a -> a.weightKg)).toArray();
        bA = (Box) sortedBox[0];
        bB = (Box) sortedBox[1];
        bC = (Box) sortedBox[2];
        System.out.printf("Sorted Boxes: %dKg %dKg %dKg%n", bA.weightKg, bB.weightKg, bC.weightKg);
    }
}