Java Internship One

Simple one-time equation solution of two yuan

Import Java.lang.math;import Java.util.scanner;public class solve{public static void Main (String args[]) {Scann        ER reader = new Scanner (system.in);        int a = Reader.nextint ();        int b = Reader.nextint ();        int c = Reader.nextint ();        Double ans1 = 0.0, ans2 = 0.0;        Double det = b * b-4 * a * C;            if (a = = 0 && b! = 0) {System.out.println ("the equation has only one root:" + -1*c/b);        return;            } if (a = = 0 && b = = 0) {System.out.println ("no solution");        return;            } if (Det < 0) {System.out.println ("no solution");        return;            } else if (Det = = 0) {ans1 = -1*b/(2*a);        System.out.println ("There is only one root of the equation:" + ans1);            }else{det = math.sqrt (det);            ans1 = -1*b + det;            Ans1/= 2.0*a;            Ans2 = -1*b-det;            Ans2/= 2.0*a;            SYSTEM.OUT.PRINTLN ("There are only two of these equations:"); System.out.println ("The first rootFor: "+ ans1);        System.out.println ("The second root is:" + ans2); }    }    }

Simple class of students

Package Student;import java.lang.string;import java.util.scanner;class schoolstudent{String name;      int grade;        void Set (String name, int grade) {this.name = name;    This.grade = grade;        } schoolstudent Get (Schoolstudent st) {st.name = THIS.name;        St.grade = This.grade;    Return St;        } schoolstudent (String name, int grade) {this.name = name;    This.grade = grade;        } schoolstudent () {this.name = "";    This.grade = 0; }} public class student{public static void Main (String args[]) {while (true) {Scanner                reader = new Scanner (system.in);                System.out.println ("Name:");                String name = Reader.nextline ();                System.out.println ("Score:");                int grade = Reader.nextint ();                Schoolstudent tom = new Schoolstudent (Name,grade);                System.out.println ("Student Name:" + tom.name); System.out.println ("Score:" + Tom.)grade); }               }   }

Gobang Gobang File

Import Java.util.scanner;public class wuziqi{static int maxn = 16;    private static char[][] map = new CHAR[MAXN][MAXN];    private static char[] baihei= {' 0 ', '};    private static int[] Tox = { -1,0,-1,-1,1,1,0,1};    private static int[] toy = {0,-1,-1,1,-1,1,1,0};                public static void Init () {for (Int. I=1; i<maxn; i++) for (int j=1; j<maxn; j + +)    MAP[I][J] = ' + ';            public static void Paint () {for (Int. I=1; i<maxn; i++) {for (int j=1; j<maxn; j + +)            {System.out.print (map[i][j]);        } System.out.println ();            }} public static Boolean islegal (int i, int j) {if (i>15 | | i<1 | | j>15 | | j<1) {        return false;    } return true;            } private static int iswin (int p,int x,int y) {for (int i=0; i<4; i++) {int sum = 1;            int xx = x+tox[i]; int yy = Y+toY[i];                while (map[xx][yy]==baihei[p%2] && islegal (xx,yy)) {sum++;                xx = Xx+tox[i];            yy = Yy+toy[i];            } xx = X+tox[7-i];            yy = Y+toy[7-i];                while (map[xx][yy]==baihei[p%2] && islegal (xx,yy)) {sum++;                xx = Xx+tox[7-i];            yy = Yy+toy[7-i];        } if (sum>=5) return 1;    } return 0;        } public static void Main (string[] args) {init (); int cnt =-1;            He while (true) {System.out.println ("Enter the coordinates of the falling chess, in the form of X y:");            Scanner reader = new Scanner (system.in);            int x1 = Reader.nextint ();            int y1 = Reader.nextint ();                while (!islegal (x1,y1) | | map[x1][y1]! = ' + ') {System.out.println ("Please re-enter the coordinates of the Falling Chess:");                reader = new Scanner (system.in); X1 = Reader.nextInt ();            Y1 = Reader.nextint ();            } cnt++;            MAP[X1][Y1] = baihei[cnt%2];            Paint ();                if (Iswin (cnt,x1,y1) ==1) {System.out.println ("Congratulations on winning");            Break                } if (cnt = = 15*15-1) {System.out.println ("draw");            Break }        }    }}

Java Internship one