publicclassA{2.publicvoidmethod1()

1.publicclassA{ 2.publicvoidmethod1(){ 3.Bb=newB(); 4.b.method2(); 5.//morecodehere 6.} 7.} 1.publicclassB{ 2.publicvoidmethod2(){ 3.Cc=newC(); 4.c.method3(); 5.//morecodehere 6.} 7.} 1.publicclassC{ 2.publicvoidmethod3(){ 3.//morecodehere 4.} 5.} Given: 25.try{ 26.Aa=newA(); 27.a.method1(); 28.}catch(Exceptione){ 29.System.out.print(”anerroroccurred”); 30.} WhichtwoaretrueifaNullPointerExceptionisthrownonline3ofclassC?()

时间:2024-01-18 10:06:12

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