Software Engineering Personal Assignment 01

Job Requirements:

0 spend 20 minutes writing a "software" that can automatically generate 30 primary arithmetic topics, in addition to integers, to support the arithmetic of true scores.

0 and the students compare the functions of the respective programs, the similarities and differences between the implementation methods and so on. Design ideas: The first automatic generation must have a random number, and then the operator can be randomly used 0~3 instead, in order to represent subtraction, support true score can use an if statement, let the user automatically choose whether the topic is an integer or true score, of which 30 questions let me change to be able to choose the number of topics, This allows you to choose the number of fractional and integer questions, which is easy to use. Source:

Importjava.util.*;//Reference Util Package Public classYunsuan { Public Static voidMain (string[] args) {//TODO auto-generated Method StubRandom ran =NewRandom ();//Initialize random number        intNUM1; intnum2; intnum3; intnum4; intchars; intNUM0;  while(true) {System.out.println ("Enter the number of topics:"); Scanner SCA=NewScanner (system.in); NUM0= Sca.nextint ();//Enter Number of questionsSystem.out.println ("True fractional operation (1), integer operation (0):"); intJudge =Sca.nextint (); if(Judge = = 0)                 for(inti=0; i<num0; i++)                {                    intK = i+1; NUM1= Ran.nextint (100); Num2= Ran.nextint (100); Chars= Ran.nextint (4); if(chars = = 0) System.out.println ("[" +k+ "]" +num1+ "+" +num2+ "="); if(Chars = = 1) System.out.println ("[" +k+ "]" +num1+ "-" +num2+ "="); if(Chars = = 2) System.out.println ("[" +k+ "]" +num1+ "*" +num2+ "="); if(Chars = = 3)                        if(num2 = = 0) I=i-1; ElseSystem.out.println ("[" +k+ "]" +num1+ "/" +num2+ "="); }            Else if(Judge = = 1)                 for(inti=0; i<num0; i++)                {                    intK = i+1; intT; NUM1= Ran.nextint (100); Num2= Ran.nextint (100); NUM3= Ran.nextint (100); NUM4= Ran.nextint (100); Chars= Ran.nextint (4); if(num1>num2) {T=num2; Num2=NUM1; NUM1=T; }                    if(NUM1 = =num2) num2= Num2+1; if(num3>num4) {T=num4; NUM4=num3; NUM3=T; }                    if(num3 = =num4) num4= Num4+1; if(chars = = 0) System.out.println ("[" +k+ "]" +num1+ "/" +num2+ "+" +num3+ "/" +num4+ "="); if(Chars = = 1) System.out.println ("[" +k+ "]" +num1+ "/" +num2+ "-" +num3+ "/" +num4+ "="); if(Chars = = 2) System.out.println ("[" +k+ "] (" +num1+ "/" +num2+ ") * (" +num3+ "/" +num4+ ") ="); if(Chars = = 3) System.out.println ("[" +k+ "] (" +num1+ "/" +num2+ ")/(" +num3+ "/" +num4+ ") ="); }            ElseSystem.out.println ("Wrong input, please try again"); }    }}

arithmetic

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Software Engineering Personal Assignment 01