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23 lines
602 B
23 lines
602 B
package mathlearning.service.QuestionGenerator;
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public class middleGenerator extends QuestionGenerator{
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public middleGenerator() {
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super("初中");
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}
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@Override
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public String generateQuestion() {
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int operandCount = random.nextInt(4) + 2;
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// 生成操作数
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int[] operands = new int [ operandCount ];
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for (int i = 0; i < operandCount; i++) {
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operands[i] = random.nextInt(100) + 1; // 1-100
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}
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String question = preForOper(operands);
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question = add_squs(question);
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return addParen(question);
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}
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} |