package test2;
import java.util.*;
public class yunsuan2 {
public static void main(String[] args) {
// TODO Auto-generated method stub int a=0,b=0,c=0,d=0,e=0; int h=-1; int x=-1; String S[]=new String[5000]; //string型数组，用来存储运算题，方便与前面进行比较，看是否有重复 Scanner in=new Scanner(System.in); do { dingzhi D=new dingzhi(); fushu F=new fushu(); fu fu=new fu(); int m=0; int z=0; D.Input(); while(D.i*D.j>5000) //对需要输出题目的总数进行查看，是否符合数组的存储范围 { System.out.print("输入的题目总数已超过最大出题数，请重新输入："); D.Input(); } F.Input1(); F.Input2(); fu.Input(); Random R=new Random(); if(fu.Q==0) //不进行负数运算 { for(int i=0;i<(D.i*D.j);i++) { int k=0; do { m=0; c=R.nextInt(5); for(int j=0;j<F.X;j++) { if(F.C[j]==c) { switch(c) { case 1: //加法 do { if(F.W==1) //有负数运算 { int G=R.nextInt(2); int g=R.nextInt(2); switch(G) //随机产生一个数 { case 0:a=(int) (D.n+Math.random()*(D.m-D.n+1));break; case 1:a=-(int) (D.n+Math.random()*(D.m-D.n+1));break; } switch(g) //随机产生另一个数 { case 0: b=-(int) (D.n+Math.random()*(D.m-D.n+1));break; case 1: b=(int) (D.n+Math.random()*(D.m-D.n+1));break; } } else //无负数运算 { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+")+("+b+""+")"+"="; for(int l=0;l<i;l++) { if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 2: //减法 do { if(F.W==1) //有负数运算 { int G=R.nextInt(2); int g=R.nextInt(2); switch(G) //随机产生一个数 { case 0: a=-(int)(D.n+Math.random()*(D.m-D.n+1));break; case 1: a=(int) (D.n+Math.random()*(D.m-D.n+1));break; } switch(g) //随机产生另一个数 { case 0: b=-(int)(D.n+Math.random()*(D.m-D.n+1));break; case 1: b=(int) (D.n+Math.random()*(D.m-D.n+1));break; } } else //无负数运算 { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+")"+"-"+"("+b+""+")="; for(int l=0;l<i;l++) { if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 3: //除法 do { if(F.F==1) //有余数取值 { do { a=(int) (D.n+Math.random()*(D.m-D.n+1)); do { b=(int) (D.n+Math.random()*(D.m-D.n+1)); }while(b==0); }while(a%b==0); } else //无余数取值 { do { a=(int) (D.n+Math.random()*(D.m-D.n+1)); do { b=(int) (D.n+Math.random()*(D.m-D.n+1)); }while(b==0); }while(a%b!=0); } S[i]=a+""+"/"+b+""+"=";for(int l=0;l<i;l++)
{ if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 4: //乘法 do { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); S[i]=a+""+"*"+b+""+"=";for(int l=0;l<i;l++)
{ if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; } } else { m++; } } }while(m==F.X); } } else if(fu.Q==1) //有分数运算 { System.out.print("请选则1-真分数，2-假分数，3-真分数和假分数："); z=in.nextInt(); while((z!=1)&&(z!=2)&&(z!=3)) { System.out.print("输入有误！请重新输入："); z=in.nextInt(); } if(z==1) //真分数运算 { for(int i=0;i<(D.i*D.j);i++) { int k=0; do { m=0; c=R.nextInt(5); a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); for(int j=0;j<F.X;j++) { if(F.C[j]==c) { switch(c) { case 1: do { while((a>=b)||(a==0)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e>=d)||(d==0)||(e==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")+("+e+""+"/"+d+""+")"+"=";for(int l=0;l<i;l++)
{ if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 2: do { while((a>=b)||(a==0)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e>=d)||(d==0)||(e==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")-("+e+""+"/"+d+""+")"+"="; for(int l=0;l<i;l++) { if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 3: do { while((a>=b)||(a==0)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e>=d)||(d==0)||(e==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")/("+e+""+"/"+d+""+")"+"=";for(int l=0;l<i;l++)
{ if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 4: do { while((a>=b)||(a==0)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e>=d)||(d==0)||(e==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")*("+e+""+"/"+d+""+")"+"="; for(int l=0;l<i;l++) { if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; } } else { m++; } } }while(m==F.X); } } else if(z==2) //假分数运算 { for(int i=0;i<D.i*D.j;i++) { int k=0; do { m=0; c=R.nextInt(5); a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); for(int j=0;j<F.X;j++) { if(F.C[j]==c) { switch(c) { case 1: do { while((a<b)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e<d)||(d==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")+("+e+""+"/"+d+""+")"+"="; for(int l=0;l<i;l++) { if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 2: do { while((a<b)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e<d)||(d==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")-("+e+""+"/"+d+""+")"+"=";for(int l=0;l<i;l++)
{ if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 3: do { while((a<b)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e<d)||(d==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")/("+e+""+"/"+d+""+")"+"="; for(int l=0;l<i;l++) { if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 4: do { while((a<b)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e<d)||(d==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")*("+e+""+"/"+d+""+")"+"=";for(int l=0;l<i;l++)
{ if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; } } else { m++; } } }while(m==F.X); } } else if(z==3) //真假分数运算 { for(int i=0;i<D.i*D.j;i++) { int k=0; do { m=0; c=R.nextInt(5); a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); for(int j=0;j<F.X;j++) { if(F.C[j]==c) { switch(c) { case 1: do { while((a>=b)||(a==0)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e<d)||(d==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")+("+e+""+"/"+d+""+")"+"=";for(int l=0;l<i;l++)
{ if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 2: do { while((a>=b)||(a==0)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e<d)||(d==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")-("+e+""+"/"+d+""+")"+"=";for(int l=0;l<i;l++)
{ if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 3: do { while((a>=b)||(a==0)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e<d)||(d==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")/("+e+""+"/"+d+""+")"+"=";for(int l=0;l<i;l++)
{ if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; case 4: do { while((a>=b)||(a==0)||(b==0)) { a=(int) (D.n+Math.random()*(D.m-D.n+1)); b=(int) (D.n+Math.random()*(D.m-D.n+1)); } while((e<d)||(d==0)) { e=(int) (D.n+Math.random()*(D.m-D.n+1)); d=(int) (D.n+Math.random()*(D.m-D.n+1)); } S[i]="("+a+""+"/"+b+""+")*("+e+""+"/"+d+""+")"+"=";for(int l=0;l<i;l++)
{ if(S[l]==S[i]) { k=1; break; } } }while(k==1); break; } } else { m++; } } }while(m==F.X); } } } System.out.print("请输入你要打印的格式（每页以几列输出）："); x=in.nextInt(); int v=0; System.out.println("四则运算题："); for(int i=0;i<D.j;i++) { int u=0; for(int j=0;j<D.i;j++) { System.out.printf("%30s",S[v]); v++; u++; if(u%x==0) { System.out.println(); } } System.out.println(); System.out.println("第"+(i+1)+"页"); } System.out.print("是否还要继续打印（是——1，否——0）："); h=in.nextInt(); while((h!=0)&&(h!=1)) { System.out.print("输入有误！请重新输入："); h=in.nextInt(); } }while(h==1); }}class dingzhi //输入需要打印的每页题数与页数{ public int i,j; public int n,m; Scanner S=new Scanner(System.in); dingzhi() { i=0; j=0; n=0; m=0; } public void Input() { System.out.print("请输入每页输出的题目数："); i=S.nextInt(); System.out.print("请输入打印的页数："); j=S.nextInt(); System.out.print("请输入算术题运算数的范围（例如：范围在0~100之间，输入0 100）："); n=S.nextInt(); m=S.nextInt(); }}class choice { public int X; public int Y; public int C[]=new int[4]; Scanner S=new Scanner(System.in); choice() { X=0;Y=-1; }}class fushu extends choice //对加减乘除法进行选择并且存放在数组里,并对负数运算以及除法是否取余进行选择{ public int W,F; fushu() { W=-1; F=-1; } public void Input1() { do { System.out.print("请对加减乘除法进行选择（1-加法，2-减法，3-除法，4-乘法（请选择一项,不再选择请输入—0））："); Y=S.nextInt(); while((Y!=0)&&(Y!=1)&&(Y!=2)&&(Y!=3)&&(Y!=4)) { System.out.print("输入错误请重新输入："); Y=S.nextInt(); } if(Y!=0) { C[X]=Y; X++; } else { break; } }while(Y!=0); } public void Input2() { for(int a=0;a<X;a++) { if((C[a]==1)||(C[a]==2)) { while((W!=1)&&(W!=0)) { System.out.print("是否要有负数运算（是——1，否——0）："); W=S.nextInt(); while((W!=1)&&(W!=0)) { System.out.print("输入有误，请重新输入："); W=S.nextInt(); } } } if(C[a]==3) { System.out.print("除法运算的结果是否要有余数（是——1，否——0）："); F=S.nextInt(); while((F!=1)&&(F!=0)) { System.out.print("输入有误，请重新输入："); F=S.nextInt(); } } } }}class fu //对分数运算进行选择{ public int Q; fu() { Q=-1; } Scanner S=new Scanner(System.in); public void Input() { System.out.print("是否要有分数运算（是-1，无——0）："); Q=S.nextInt(); while((Q!=1)&&(Q!=0)) { Q=S.nextInt(); } }}运行结果：
请输入每页输出的题目数：40请输入打印的页数：2请输入算术题运算数的范围（例如：范围在0~100之间，输入0 100）：0 100请对加减乘除法进行选择（1-加法，2-减法，3-除法，4-乘法（请选择一项,不再选择请输入—0））：1请对加减乘除法进行选择（1-加法，2-减法，3-除法，4-乘法（请选择一项,不再选择请输入—0））：3请对加减乘除法进行选择（1-加法，2-减法，3-除法，4-乘法（请选择一项,不再选择请输入—0））：0是否要有负数运算（是——1，否——0）：1除法运算的结果是否要有余数（是——1，否——0）：1是否要有分数运算（是-1，无——0）：0请输入你要打印的格式（每页以几列输出）：4四则运算题： 22/37= (-79)+(-28)= (77)+(13)= (33)+(54)= (72)+(-77)= 48/40= (0)+(69)= (-87)+(-46)= (1)+(-61)= (-50)+(-50)= 69/24= (99)+(-64)= 73/78= (-6)+(-46)= 97/57= (35)+(-34)= 81/62= (-26)+(-90)= (25)+(75)= 31/68= (24)+(61)= 35/61= 91/54= (-8)+(-72)= 77/49= (-74)+(-77)= (-34)+(96)= 66/32= 10/68= 78/87= (-57)+(-65)= (0)+(96)= 32/37= 99/46= 44/7= (-8)+(-35)= (-49)+(-76)= (-33)+(-89)= (32)+(-44)= 65/76=第1页 (51)+(-6)= (85)+(-63)= 92/82= 93/10= (-91)+(42)= (48)+(-8)= (-34)+(-12)= (59)+(37)= 10/84= 6/77= 82/68= 66/98= 13/74= 51/63= (-29)+(97)= 9/75= (34)+(74)= 45/35= (-74)+(-88)= (-81)+(84)= 44/19= 3/82= (88)+(-7)= 15/70= 50/42= 97/67= (66)+(100)= 64/78= 23/80= (22)+(80)= 81/32= (-64)+(84)= 5/82= (-92)+(92)= 36/100= 73/83= (-36)+(20)= (-79)+(54)= (56)+(-31)= (-5)+(57)=第2页是否还要继续打印（是——1，否——0）：1请输入每页输出的题目数：50请输入打印的页数：4请输入算术题运算数的范围（例如：范围在0~100之间，输入0 100）：10 200请对加减乘除法进行选择（1-加法，2-减法，3-除法，4-乘法（请选择一项,不再选择请输入—0））：4请对加减乘除法进行选择（1-加法，2-减法，3-除法，4-乘法（请选择一项,不再选择请输入—0））：0是否要有分数运算（是-1，无——0）：1请选则1-真分数，2-假分数，3-真分数和假分数：3请输入你要打印的格式（每页以几列输出）：2四则运算题： (61/165)*(196/12)= (60/82)*(195/30)= (56/145)*(126/119)= (96/189)*(191/19)= (61/150)*(107/90)= (46/122)*(107/74)= (54/132)*(174/136)= (87/112)*(149/116)= (66/107)*(149/148)= (16/144)*(102/53)= (117/132)*(175/81)= (29/152)*(147/19)= (23/110)*(170/100)= (67/183)*(72/63)= (50/102)*(138/133)= (130/185)*(68/54)= (64/139)*(189/133)= (125/193)*(200/52)= (25/46)*(162/82)= (38/101)*(200/129)= (139/183)*(65/29)= (66/168)*(166/116)= (99/189)*(184/119)= (113/175)*(37/18)= (62/105)*(148/18)= (94/164)*(144/26)= (129/185)*(108/42)= (13/195)*(118/77)= (20/180)*(65/27)= (48/171)*(188/114)= (57/192)*(98/94)= (22/80)*(128/75)= (101/194)*(133/62)= (13/97)*(167/53)= (31/40)*(74/10)= (70/193)*(128/32)= (67/199)*(147/115)= (114/177)*(179/52)= (31/98)*(196/157)= (11/32)*(165/158)= (74/190)*(174/65)= (28/198)*(178/147)= (55/95)*(49/31)= (104/142)*(66/10)= (46/57)*(148/102)= (25/67)*(136/109)= (44/145)*(121/48)= (73/74)*(199/70)= (11/39)*(65/32)= (10/73)*(173/154)=第1页 (132/157)*(193/111)= (142/179)*(132/80)= (177/193)*(199/112)= (90/169)*(190/52)= (79/185)*(132/64)= (68/167)*(183/102)= (144/187)*(142/138)= (77/105)*(152/71)= (95/160)*(145/26)= (23/124)*(167/70)= (38/41)*(105/99)= (15/84)*(178/39)= (33/69)*(138/97)= (121/160)*(192/106)= (22/125)*(96/66)= (15/84)*(69/60)= (11/115)*(57/21)= (101/118)*(148/63)= (61/73)*(169/156)= (113/164)*(187/29)= (38/197)*(96/10)= (170/190)*(172/20)= (67/171)*(68/68)= (66/97)*(151/139)= (68/189)*(172/58)= (31/45)*(174/100)= (85/169)*(117/110)= (149/177)*(192/135)= (111/156)*(117/85)= (117/169)*(153/131)= (125/197)*(197/107)= (137/199)*(90/82)= (13/54)*(155/16)= (90/123)*(110/28)= (67/169)*(108/79)= (144/195)*(186/172)= (38/170)*(107/76)= (97/187)*(66/42)= (93/131)*(184/26)= (14/66)*(150/95)= (99/123)*(95/57)= (63/78)*(120/55)= (140/143)*(171/110)= (36/147)*(165/22)= (133/164)*(172/89)= (88/140)*(174/168)= (67/113)*(144/69)= (23/149)*(183/20)= (17/89)*(198/31)= (67/155)*(150/114)=第2页 (77/142)*(154/148)= (96/189)*(194/179)= (50/141)*(91/62)= (10/128)*(162/101)= (92/199)*(114/83)= (125/193)*(44/23)= (157/161)*(157/74)= (15/146)*(143/10)= (55/115)*(170/54)= (20/156)*(176/172)= (58/88)*(59/19)= (102/161)*(82/14)= (83/178)*(184/74)= (35/45)*(105/40)= (144/179)*(154/87)= (173/195)*(198/20)= (49/126)*(147/120)= (41/150)*(198/166)= (28/99)*(189/180)= (35/185)*(144/110)= (16/87)*(130/51)= (60/73)*(135/76)= (41/107)*(155/39)= (170/184)*(192/156)= (88/146)*(154/116)= (58/111)*(69/31)= (94/129)*(73/52)= (88/168)*(128/11)= (41/137)*(195/34)= (12/50)*(181/53)= (43/154)*(102/63)= (14/37)*(82/36)= (45/188)*(100/21)= (93/102)*(37/17)= (110/144)*(123/59)= (102/135)*(151/114)= (71/83)*(175/42)= (84/198)*(54/17)= (27/188)*(90/38)= (125/149)*(141/121)= (152/166)*(176/12)= (12/193)*(185/14)= (74/149)*(57/10)= (11/90)*(189/119)= (23/72)*(185/31)= (37/173)*(84/55)= (37/151)*(135/88)= (166/186)*(199/80)= (22/80)*(185/110)= (168/181)*(142/98)=第3页 (43/143)*(191/159)= (115/193)*(40/18)= (70/165)*(135/126)= (149/166)*(186/151)= (55/122)*(146/134)= (11/17)*(58/23)= (70/157)*(129/28)= (63/110)*(152/63)= (50/165)*(152/61)= (79/198)*(145/135)= (90/125)*(166/73)= (94/156)*(190/136)= (75/154)*(132/131)= (44/100)*(119/103)= (27/153)*(155/59)= (68/114)*(88/35)= (70/144)*(164/162)= (92/200)*(177/141)= (72/147)*(151/80)= (91/99)*(118/74)= (53/106)*(71/10)= (40/51)*(189/30)= (88/186)*(189/74)= (41/59)*(166/158)= (104/113)*(87/58)= (10/118)*(131/53)= (70/105)*(52/11)= (185/191)*(133/87)= (66/188)*(137/117)= (67/110)*(74/72)= (55/92)*(150/38)= (12/25)*(108/105)= (62/67)*(174/23)= (29/174)*(90/77)= (86/147)*(191/44)= (48/87)*(90/89)= (33/159)*(172/167)= (93/107)*(141/122)= (105/148)*(161/53)= (176/186)*(133/131)= (62/67)*(101/22)= (43/133)*(175/101)= (48/179)*(61/22)= (36/83)*(200/181)= (71/107)*(115/98)= (72/149)*(118/83)= (103/107)*(167/28)= (163/184)*(154/24)= (86/101)*(196/36)= (14/137)*(122/122)=第4页是否还要继续打印（是——1，否——0）：0
编程总结：
此次编程，在程序运行时遇到了很多问题。主要有：（1）在运行时算式不能按原意输出，经检查是随机函数使用错误（刚开始没注意到，浪费了很多时间）；（2）运算题输出时，有“null”输出，检查后发现是用来判断执行do...while的条件变量位置放置不对；（3）输出格式问题，刚开始用System.out.print()输出，后改为System.out.printf()输出。
时间记录日志：
