All my Java work

1.java

public class Triangle{
private static void g1(int n1){for(int n3=0;n3<n1;n3++){g2(n1-n3-1,' '); g2(n3*2+1,'x');g3();}}
private static void g2(int n1, char n2){for(int n3=0;n3<n1;n3++){System.out.print(n2);}}
private static void g3(){System.out.println();}
public static void main(String[] args){g1(4);}
}

2.java

public class PeterPiper{
public static void main(String[] args){
final String s1="Peter",s2="Piper",s3="picked",s4="a",s5="peck",s6="of",s7="pickled",s8="peppers",s9="A",s10="If",s11="Where's",s12="the";
System.out.printf("%s %s %s %s %s %s %s %s.\n",s1,s2,s3,s4,s5,s6,s7,s8);
System.out.printf("%s %s %s %s %s, %s %s %s.\n",s9,s5,s6,s7,s8,s1,s2,s3);
System.out.printf("%s %s %s %s %s %s %s %s,\n",s10,s1,s3,s4,s5,s6,s7,s8);
System.out.printf("%s %s %s %s %s %s %s %s %s?",s11,s12,s5,s6,s7,s8,s1,s2,s3);
}
}

3.java

public class MultTable{
static void gtef(){cwio();xcss();vvku(1);}
static void dvjh(){System.out.println();}
static void haia(char n1){System.out.print(n1);}
static void tdzy(int n1){while(n1>0){haia(' ');--n1;}}
static void kqfj(){System.out.print(" | ");}
static void cwio(){tdzy(4);haia('y');wyrx(1);tdzy(1);dvjh();}
static void wyrx(int n1){if(n1<6){kqfj();umat(n1);haia('y');wyrx(n1+1);}}
static void umat(int n1){System.out.print(n1);}
static void nnwk(int n1){if(n1<4){haia('-');nnwk(n1+1);}}
static void xcss(){tdzy(2);nnwk(0);rhxq(0);dvjh();}
static void rhxq(int n1){if(n1<5){haia('|');nnwk(0);rhxq(n1+1);}}
static void vvku(int n1){if(n1<11){jejw(n1);jrip(n1,1);dvjh();vvku(n1+1);}}
static void ywfy(int n1){System.out.printf("%2d",n1);}
static void jejw(int n1){tdzy(3);ywfy(n1);}
static void jrip(int n1,int n2){if(n2<6){kqfj();ywfy(n1*n2);jrip(n1,n2+1);}}
public static void main(String[] args){gtef();}
}

4.java

public class RectArea{public static void main(String[] args){System.out.print(4.25*3.40);}}

5.java

import java.util.Scanner;
public class RectArea2 {
    static Scanner goToNeighbor() {
        return new Scanner(System.in);
    }
    static double begForACupOfSugar(Scanner neighbor) {
        System.out.print("Please enter the width of the rectangle: ");
        return neighbor.nextDouble();
    }
    static double begForSomeFlourToo(Scanner neighbor) {
        System.out.print("Please enter the height of the rectangle: ");
        return neighbor.nextDouble();
    }
    static double bakeCookies(double sugar, double flour) {
        return sugar*flour;
    }
    static void haveABakeSale(double cookies) {
        System.out.print(cookies);
    }
    public static void main(String[] args) {
        Scanner neighbor = goToNeighbor();
        double sugar = begForACupOfSugar(neighbor);
        double flour = begForSomeFlourToo(neighbor);
        double cookies = bakeCookies(sugar, flour);
        haveABakeSale(cookies);
   }
}

6.java

import java.util.Scanner;

public class ConvertTemp {

    static Scanner goToSupermarket() {
        return new Scanner(System.in);
    }

    static double purchaseIngredients(Scanner store) {
        return store.nextDouble();
    }

    static double mixDough(double ingredients) {
        return (ingredients - 32) * 5 / 9;
    }

    static double bakeBread(double dough) {
        return dough + 273;
    }

    static void tweet(double stuff) {
        System.out.println(stuff);
    }

    public static void main(String[] args) {
        Scanner store = goToSupermarket();
        double ingredients = purchaseIngredients(store);
        double dough = mixDough(ingredients);
        tweet(dough);
        double bread = bakeBread(dough);
        tweet(bread);
    }
}

7.java

import java.util.Scanner;

public class Lines {

    static Scanner s;

    static double p() {
        return s.nextDouble();
    }

    public static void main(String[] args) {
        s = new Scanner(System.in);
        double j = p(), k = p();
        System.out.println(Math.hypot(j - p(), k - p()));
    }
}

8.java

import java.util.Scanner;public class Strings{
static Scanner rhcr(){return new Scanner(System.in);}
static String xioc(Scanner lnv){return lnv.nextLine();}
static int krkt(Scanner nea){return nea.nextInt();}
static int cazs(String tlt){return tlt.length();}
static char vbpn(String dwc,int utj){return dwc.charAt(utj);}
static int rexg(int wju,int wlq){return wju-wlq;}
static void njdv(Scanner bsk){wdcz(xioc(bsk),krkt(bsk));}
static void wdcz(String mss,int wcu){ztsi(vbpn(mss,rexg(cazs(mss),wcu)));if(wvkn(wcu)){wdcz(mss,rexg(wcu,hpis()));}}
static void ztsi(char ada){System.out.print(ada);}
static boolean wvkn(int dsu){return dsu>hpis();}
static int hpis(){return 1;}
static void lgbp(String sky){System.out.print(sky);}
static void clsi(){lgbp("Please enter a string: \nPlease enter a value for n: \n");}
public static void main(String[] args){clsi();njdv(rhcr());}}

da faq did i just look at?